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8/10/2019 SRC4392 by TI datasheet
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S R C 4 3 9 2
1
F E A T U R E S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T w o - C h a n n e l , A s y n c h r o n o u s S a m p l e R a t e C o n v e r t e r w i t h I n t e g r a t e d D i g i t a l A u d i o I n t e r f a c e R e c e i v e r a n d T r a n s m i t t e r
• D i g i t a l A u d i o I n t e r f a c e R e c e i v e r ( D I R )
2 3 4 • T w o - C h a n n e l A s y n c h r o n o u s S a m p l e R a t e – P L L L o c k R a n g e I n c l u d e s S a m p l i n g R a t e s
C o n v e r t e r ( S R C ) f r o m 2 0 k H z t o 2 1 6 k H z
– D y n a m i c R a n g e w i t h – 6 0 d B I n p u t – I n c l u d e s F o u r D i f f e r e n t i a l I n p u t L i n e ( A - W e i g h t e d ) : 1 4 4 d B t y p i c a l R e c e i v e r s a n d a n I n p u t M u l t i p l e x e r
– T o t a l H a r m o n i c D i s t o r t i o n a n d N o i s e – B y p a s s M u l t i p l e x e r R o u t e s L i n e R e c e i v e r
( T H D + N ) w i t h F u l l - S c a l e I n p u t : – 1 4 0 d B O u t p u t s t o L i n e D r i v e r a n d B u f f e r O u t p u t s t y p i c a l – B l o c k - S i z e d D a t a B u f f e r s f o r B o t h C h a n n e l
– S u p p o r t s A u d i o I n p u t a n d O u t p u t D a t a S t a t u s a n d U s e r D a t a
W o r d L e n g t h s U p t o 2 4 B i t s – A u t o m a t i c D e t e c t i o n o f N o n - P C M A u d i o
– S u p p o r t s I n p u t a n d O u t p u t S a m p l i n g S t r e a m s ( D T S C D / L D a n d I E C 6 1 9 3 7 F r e q u e n c i e s U p t o 2 1 6 k H z f o r m a t s )
– A u t o m a t i c D e t e c t i o n o f t h e I n p u t - t o - O u t p u t – A u d i o C D Q - C h a n n e l S u b - C o d e D e c o d i n g S a m p l i n g R a t i o a n d D a t a B u f f e r
– W i d e I n p u t - t o - O u t p u t C o n v e r s i o n R a n g e : – S t a t u s R e g i s t e r s a n d I n t e r r u p t G e n e r a t i o n 1 6 : 1 t o 1 : 1 6 C o n t i n u o u s f o r F l a g a n d E r r o r C o n d i t i o n s
– E x c e l l e n t J i t t e r A t t e n u a t i o n C h a r a c t e r i s t i c s – L o w J i t t e r R e c o v e r e d C l o c k O u t p u t
– D i g i t a l D e - E m p h a s i s F i l t e r i n g f o r 3 2 k H z , • T w o A u d i o S e r i a l P o r t s ( P o r t s A a n d B ) 4 4 . 1 k H z , a n d 4 8 k H z I n p u t S a m p l i n g R a t e s – S y n c h r o n o u s S e r i a l I n t e r f a c e t o E x t e r n a l
– D i g i t a l O u t p u t A t t e n u a t i o n a n d M u t e S i g n a l P r o c e s s o r s , D a t a C o n v e r t e r s , a n d
F u n c t i o n s L o g i c
– O u t p u t W o r d L e n g t h R e d u c t i o n – S l a v e o r M a s t e r M o d e O p e r a t i o n w i t h S a m p l i n g R a t e s u p t o 2 1 6 k H z – S t a t u s R e g i s t e r s a n d I n t e r r u p t G e n e r a t i o n
f o r S a m p l i n g R a t i o a n d R e a d y F l a g s – S u p p o r t s L e f t - J u s t i f i e d , R i g h t - J u s t i f i e d , a n d P h i l i p s I 2 S ™ D a t a F o r m a t s • D i g i t a l A u d i o I n t e r f a c e T r a n s m i t t e r ( D I T )
– S u p p o r t s A u d i o D a t a W o r d L e n g t h s U p t o – S u p p o r t s S a m p l i n g R a t e s U p t o 2 1 6 k H z 2 4 B i t s
– I n c l u d e s D i f f e r e n t i a l L i n e D r i v e r a n d • F o u r G e n e r a l - P u r p o s e D i g i t a l O u t p u t s C M O S B u f f e r e d O u t p u t s
– M u l t i f u n c t i o n P r o g r a m m a b l e V i a C o n t r o l – B l o c k - S i z e d D a t a B u f f e r s f o r B o t h C h a n n e l R e g i s t e r s S t a t u s a n d U s e r D a t a
• E x t e n s i v e P o w e r - D o w n S u p p o r t – S t a t u s R e g i s t e r s a n d I n t e r r u p t G e n e r a t i o n f o r F l a g a n d E r r o r C o n d i t i o n s – F u n c t i o n a l B l o c k s M a y B e D i s a b l e d
I n d i v i d u a l l y W h e n N o t I n U s e • U s e r - S e l e c t a b l e S e r i a l H o s t I n t e r f a c e : S P I o r
P h i l i p s I 2 C ™ • O p e r a t e s F r o m + 1 . 8 V C o r e a n d + 3 . 3 V I / O P o w e r S u p p l i e s – P r o v i d e s A c c e s s t o O n - C h i p R e g i s t e r s a n d
D a t a B u f f e r s • S m a l l T Q F P - 4 8 P a c k a g e , C o m p a t i b l e w i t h t h e S R C 4 3 8 2 a n d D I X 4 1 9 2 U . S . P a t e n t N o . 7 , 2 6 2 , 7 1 6
1
P l e a s e b e a w a r e t h a t a n i m p o r t a n t n o t i c e c o n c e r n i n g a v a i l a b i l i t y , s t a n d a r d w a r r a n t y , a n d u s e i n c r i t i c a l a p p l i c a t i o n s o f T e x a s I n s t r u m e n t s s e m i c o n d u c t o r p r o d u c t s a n d d i s c l a i m e r s t h e r e t o a p p e a r s a t t h e e n d o f t h i s d a t a s h e e t .
2 D o l b y i s a r e g i s t e r e d t r a d e m a r k o f D o l b y L a b o r a t o r i e s . 3 I 2 C , I 2 S a r e t r a d e m a r k s o f K o n i n k l i j k e P h i l i p s E l e c t r o n i c s N . V . 4 A l l o t h e r t r a d e m a r k s a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
P R O D U C T I O N D A T A i n f o r m a t i o n i s c u r r e n t a s o f p u b l i c a t i o n d a t e . C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d P r o d u c t s c o n f o r m t o s p e c i f i c a t i o n s p e r t h e t e r m s o f t h e T e x a s I n s t r u m e n t s s t a n d a r d w a r r a n t y . P r o d u c t i o n p r o c e s s i n g d o e s n o t
n e c e s s a r i l y i n c l u d e t e s t i n g o f a l l p a r a m e t e r s .
8/10/2019 SRC4392 by TI datasheet
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A P P L I C A T I O N S D E S C R I P T I O N
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
• D I G I T A L A U D I O R E C O R D E R S A N D T h e S R C 4 3 9 2 i s a h i g h l y - i n t e g r a t e d C M O S d e v i c e M I X I N G D E S K S d e s i g n e d f o r u s e i n p r o f e s s i o n a l a n d b r o a d c a s t d i g i t a l
• D I G I T A L A U D I O I N T E R F A C E S F O R a u d i o s y s t e m s . T h e S R C 4 3 9 2 c o m b i n e s a C O M P U T E R S h i g h - p e r f o r m a n c e , t w o - c h a n n e l , a s y n c h r o n o u s
s a m p l e r a t e c o n v e r t e r ( S R C ) w i t h a d i g i t a l a u d i o • D I G I T A L A U D I O R O U T E R S A N D
i n t e r f a c e r e c e i v e r ( D I R ) a n d t r a n s m i t t e r ( D I T ) , t w o D I S T R I B U T I O N S Y S T E M S a u d i o s e r i a l p o r t s , a n d f l e x i b l e d i s t r i b u t i o n l o g i c f o r
• B R O A D C A S T S T U D I O E Q U I P M E N T i n t e r c o n n e c t i o n o f t h e f u n c t i o n b l o c k d a t a a n d c l o c k s .
• D V D / C D R E C O R D E R S T h e D I R a n d D I T a r e c o m p a t i b l e w i t h t h e A E S 3 , • S U R R O U N D S O U N D D E C O D E R S A N D S / P D I F , I E C 6 0 9 5 8 , a n d E I A J C P - 1 2 0 1 i n t e r f a c e A / V R E C E I V E R S s t a n d a r d s . T h e a u d i o s e r i a l p o r t s , D I T , a n d S R C m a y
• C A R A U D I O S Y S T E M S b e o p e r a t e d a t s a m p l i n g r a t e s u p t o 2 1 6 k H z . T h e D I R l o c k r a n g e i n c l u d e s s a m p l i n g r a t e s f r o m 2 0 k H z t o 2 1 6 k H z .
T h e S R C 4 3 9 2 i s c o n f i g u r e d u s i n g o n - c h i p c o n t r o l r e g i s t e r s a n d d a t a b u f f e r s , w h i c h a r e a c c e s s e d t h r o u g h e i t h e r a 4 - w i r e s e r i a l p e r i p h e r a l i n t e r f a c e ( S P I ) p o r t , o r a 2 - w i r e P h i l i p s I 2 C b u s i n t e r f a c e . S t a t u s r e g i s t e r s p r o v i d e a c c e s s t o a v a r i e t y o f f l a g a n d e r r o r b i t s , w h i c h a r e d e r i v e d f r o m t h e v a r i o u s f u n c t i o n b l o c k s . A n o p e n d r a i n i n t e r r u p t o u t p u t p i n i s p r o v i d e d , a n d i s s u p p o r t e d b y f l e x i b l e i n t e r r u p t r e p o r t i n g a n d m a s k o p t i o n s v i a c o n t r o l r e g i s t e r s e t t i n g s . A m a s t e r r e s e t i n p u t p i n i s p r o v i d e d f o r i n i t i a l i z a t i o n b y a h o s t p r o c e s s o r o r s u p e r v i s o r y f u n c t i o n s .
T h e S R C 4 3 9 2 r e q u i r e s a + 1 . 8 V c o r e l o g i c s u p p l y , i n a d d i t i o n t o a + 3 . 3 V s u p p l y f o r p o w e r i n g p o r t i o n s o f t h e D I R , D I T , a n d l i n e d r i v e r a n d r e c e i v e r f u n c t i o n s . A s e p a r a t e l o g i c I / O s u p p l y s u p p o r t s o p e r a t i o n f r o m + 1 . 6 5 V t o + 3 . 6 V , p r o v i d i n g c o m p a t i b i l i t y w i t h l o w
v o l t a g e l o g i c i n t e r f a c e s t y p i c a l l y f o u n d o n d i g i t a l s i g n a l p r o c e s s o r s a n d p r o g r a m m a b l e l o g i c d e v i c e s . T h e S R C 4 3 9 2 i s a v a i l a b l e i n a l e a d - f r e e , T Q F P - 4 8 p a c k a g e , a n d i s p i n - a n d r e g i s t e r - c o m p a t i b l e w i t h t h e T e x a s I n s t r u m e n t s S R C 4 3 8 2 a n d D I X 4 1 9 2 p r o d u c t s .
2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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A B S O L U T E M A X I M U M R A T I N G S ( 1 )
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h i s i n t e g r a t e d c i r c u i t c a n b e d a m a g e d b y E S D . T e x a s I n s t r u m e n t s r e c o m m e n d s t h a t a l l i n t e g r a t e d c i r c u i t s b e h a n d l e d w i t h a p p r o p r i a t e p r e c a u t i o n s . F a i l u r e t o o b s e r v e p r o p e r h a n d l i n g a n d i n s t a l l a t i o n p r o c e d u r e s c a n c a u s e d a m a g e .
E S D d a m a g e c a n r a n g e f r o m s u b t l e p e r f o r m a n c e d e g r a d a t i o n t o c o m p l e t e d e v i c e f a i l u r e . P r e c i s i o n i n t e g r a t e d c i r c u i t s m a y b e m o r e s u s c e p t i b l e t o d a m a g e b e c a u s e v e r y s m a l l p a r a m e t r i c c h a n g e s c o u l d c a u s e t h e d e v i c e n o t t o m e e t i t s p u b l i s h e d s p e c i f i c a t i o n s .
O R D E R I N G I N F O R M A T I O N ( 1 )
S P E C I F I E D P A C K A G E T E M P E R A T U R E P A C K A G E O R D E R I N G T R A N S P O R T M E D I A , P R O D U C T P A C K A G E D E S I G N A T O R R A N G E M A R K I N G N U M B E R Q U A N T I T Y
S R C 4 3 9 2 I P F B T T a p e a n d R e e l , 2 5 0 S R C 4 3 9 2 T Q F P - 4 8 P F B – 4 0 ° C t o + 8 5 ° C S R C 4 3 9 2 I
S R C 4 3 9 2 I P F B R T a p e a n d R e e l , 2 0 0 0
( 1 ) F o r t h e m o s t c u r r e n t p a c k a g e a n d o r d e r i n g i n f o r m a t i o n s e e t h e P a c k a g e O p t i o n A d d e n d u m a t t h e e n d o f t h i s d o c u m e n t , o r s e e t h e T I w e b s i t e a t w w w . t i . c o m .
P o w e r S u p p l i e s
V D D 1 8 – 0 . 3 V t o + 2 . 0 V
V D D 3 3 – 0 . 3 V t o + 4 . 0 V
V I O – 0 . 3 V t o + 4 . 0 V
V C C – 0 . 3 V t o + 4 . 0 V
D i g i t a l I n p u t V o l t a g e : D i g i t a l L o g i c
R X C K I , M U T E , C P M , C S , C C L K , C D I N , C D O U T , I N T , R S T , M C L K , B L S , S Y N C , B C K A , – 0 . 3 V t o ( V I O + 0 . 3 V )
B C K B , L R C K A , L R C K B , S D I N A , S D I N B
L i n e R e c e i v e r I n p u t V o l t a g e ( p e r p i n )
R X 1 + , R X 1 – , R X 2 + , R X 2 – , R X 3 + , R X 3 – , R X 4 + , R X 4 – ( V D D 3 3 + 0 . 3 ) V P P
I n p u t C u r r e n t ( a l l p i n s e x c e p t p o w e r a n d g r o u n d ) ± 1 0 m A
A m b i e n t O p e r a t i n g T e m p e r a t u r e – 4 0 ° C t o + 8 5 ° C
S t o r a g e T e m p e r a t u r e – 6 5 ° C t o + 1 5 0 ° C
( 1 ) T h e s e l i m i t s a r e s t r e s s r a t i n g s o n l y . S t r e s s e s b e y o n d t h e s e l i m i t s m a y r e s u l t i n p e r m a n e n t d a m a g e . E x t e n d e d e x p o s u r e t o a b s o l u t e m a x i m u m r a t i n g s m a y d e g r a d e d e v i c e r e l i a b i l i t y . N o r m a l o p e r a t i o n o r p e r f o r m a n c e a t o r b e y o n d t h e s e l i m i t s i s n o t s p e c i f i e d o r e n s u r e d .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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E L E C T R I C A L C H A R A C T E R I S T I C S : G e n e r a l , S R C , D I R , a n d D I T
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
D I G I T A L I / O C H A R A C T E R I S T I C S ( A l l I / O P i n s E x c e p t L i n e R e c e i v e r s a n d L i n e D r i v e r )
H i g h - L e v e l I n p u t V o l t a g e , V I H 0 . 7 × V I O V I O V
L o w - L e v e l I n p u t V o l t a g e , V I L 0 0 . 3 × V I O V
H i g h - L e v e l I n p u t C u r r e n t , I I H 0 . 5 1 0 μ A
L o w - L e v e l I n p u t C u r r e n t , V I L 0 . 5 1 0 μ A
H i g h - L e v e l O u t p u t V o l t a g e , V O H I O = – 4 m A 0 . 8 × V I O V I O V
L o w - L e v e l O u t p u t V o l t a g e , V O L I O = + 4 m A 0 0 . 2 × V I O V
I n p u t C a p a c i t a n c e , C I N 3 p F
L I N E R E C E I V E R I N P U T S ( R X 1 + , R X 1 – , R X 2 + , R X 2 – , R X 3 + , R X 3 – , R X 4 + , R X 4 – )
V o l t a g e a c r o s s a g i v e n D i f f e r e n t i a l I n p u t S e n s i t i v i t y , V T H 1 5 0 2 0 0 m V
d i f f e r e n t i a l i n p u t p a i r
I n p u t H y s t e r e s i s , V H Y 1 5 0 m V
L I N E D R I V E R O U T P U T S
( T X + , T X – )
D i f f e r e n t i a l O u t p u t V o l t a g e , V T X O R L = 1 1 0 Ω A c r o s s T X + a n d T X – 5 . 4 V P P
M A S T E R C L O C K I N P U T
M a s t e r C l o c k I n p u t ( M C L K ) F r e q u e n c y , f M C L K 1 2 7 . 7 M H z
M a s t e r C l o c k I n p u t ( M C L K ) D u t y C y c l e , f M C L K D 4 5 5 5 %
A S Y N C H R O N O U S S A M P L E R A T E C O N V E R T E R ( S R C )
I n p u t o r O u t p u t S a m p l i n g R a t e , f S I N o r f S O U T 4 2 1 6 k H z
I n p u t - t o - O u t p u t S a m p l i n g R a t i o 1 : 1 6 1 6 : 1
I n t e r c h a n n e l G a i n M i s m a t c h 0 d B
I n t e r c h a n n e l P h a s e M i s m a t c h 0 D e g r e e s
D y n a m i c R a n g e ( n o w e i g h t i n g f i l t e r a p p l i e d ) ( 1 ) B W = 2 2 H z t o f S O U T / 2 , f = 9 9 7 H z a t – 6 0 d B F S
f S I N : f S O U T = 1 2 k H z : 1 9 2 k H z 1 3 8 d B
f S I N : f S O U T = 4 4 . 1 k H z : 4 4 . 1 k H z 1 4 1 d B
f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z 1 4 1 d B
f S I N : f S O U T = 4 4 . 1 k H z : 9 6 k H z 1 4 1 d B
f S I N : f S O U T = 4 4 . 1 k H z : 1 9 2 k H z 1 3 8 d B
f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z 1 4 1 d B
f S I N : f S O U T = 4 8 k H z : 4 8 k H z 1 4 1 d B
f S I N : f S O U T = 4 8 k H z : 9 6 k H z 1 4 1 d B
f S I N : f S O U T = 4 8 k H z : 1 9 2 k H z 1 3 8 d B
f S I N : f S O U T = 9 6 k H z : 4 4 . 1 k H z 1 4 2 d B
f S I N : f S O U T = 9 6 k H z : 4 8 k H z 1 4 2 d B
f S I N : f S O U T = 9 6 k H z : 9 6 k H z 1 4 2 d B
f S I N : f S O U T = 9 6 k H z : 1 9 2 k H z 1 3 8 d B
f S I N : f S O U T = 1 9 2 k H z : 1 2 k H z 1 4 1 d B f S I N : f S O U T = 1 9 2 k H z : 4 4 . 1 k H z 1 4 2 d B
f S I N : f S O U T = 1 9 2 k H z : 4 8 k H z 1 4 2 d B
f S I N : f S O U T = 1 9 2 k H z : 9 6 k H z 1 4 2 d B
f S I N : f S O U T = 1 9 2 k H z : 1 9 2 k H z 1 3 8 d B
( 1 ) M e a s u r e d w i t h a n A u d i o P r e c i s i o n S Y S - 2 7 2 2 1 9 2 k H z t e s t s y s t e m w i t h t h e i n p u t a n d o u t p u t s a m p l i n g f r e q u e n c i e s a s y n c h r o n o u s t o o n e a n o t h e r . A - w e i g h t e d d y n a m i c r a n g e s p e c i f i c a t i o n s w i l l b e i m p r o v e d b y a p p r o x i m a t e l y 2 d B t o 3 d B w h e n c o m p a r e d t o t h e r e s u l t s w i t h o u t A - w e i g h t i n g a p p l i e d .
4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
E L E C T R I C A L C H A R A C T E R I S T I C S : G e n e r a l , S R C , D I R , a n d D I T ( c o n t i n u e d ) A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
T o t a l H a r m o n i c D i s t o r t i o n + N o i s e ( T H D + N ) ( 2 ) B W = 2 2 H z t o f S O U T / 2 , f = 9 9 7 H z a t 0 d B F S
f S I N : f S O U T = 1 2 k H z : 1 9 2 k H z – 1 3 7 d B
f S I N : f S O U T = 4 4 . 1 k H z : 4 4 . 1 k H z – 1 4 0 d B
f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z – 1 4 0 d B
f S I N : f S O U T = 4 4 . 1 k H z : 9 6 k H z – 1 4 0 d B
f S I N : f S O U T = 4 4 . 1 k H z : 1 9 2 k H z – 1 3 7 d B
f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z – 1 4 0 d B
f S I N : f S O U T = 4 8 k H z : 4 8 k H z – 1 4 0 d B
f S I N : f S O U T = 4 8 k H z : 9 6 k H z – 1 4 0 d B
f S I N : f S O U T = 4 8 k H z : 1 9 2 k H z – 1 3 7 d B
f S I N : f S O U T = 9 6 k H z : 4 4 . 1 k H z – 1 4 1 d B
f S I N : f S O U T = 9 6 k H z : 4 8 k H z – 1 4 1 d B
f S I N : f S O U T = 9 6 k H z : 9 6 k H z – 1 4 0 d B
f S I N : f S O U T = 9 6 k H z : 1 9 2 k H z – 1 3 7 d B
f S I N : f S O U T = 1 9 2 k H z : 1 2 k H z – 1 4 0 d B
f S I N : f S O U T = 1 9 2 k H z : 4 4 . 1 k H z – 1 4 1 d B
f S I N : f S O U T = 1 9 2 k H z : 4 8 k H z – 1 4 1 d B
f S I N : f S O U T = 1 9 2 k H z : 9 6 k H z – 1 4 1 d B
f S I N : f S O U T = 1 9 2 k H z : 1 9 2 k H z – 1 3 7 d B
D i g i t a l I n t e r p o l a t i o n F i l t e r C h a r a c t e r i s t i c s
P a s s b a n d 0 . 4 5 3 5 × f S I N H z
P a s s b a n d R i p p l e ± 0 . 0 0 7 d B
T r a n s i t i o n B a n d 0 . 4 5 3 5 × f S I N 0 . 5 4 6 5 × f S I N H z
S t o p B a n d 0 . 5 4 6 5 × f S I N H z
S t o p B a n d A t t e n u a t i o n – 1 4 4 d B
G r o u p D e l a y ( 6 4 s a m p l e s p r e - b u f f e r e d ) D e c i m a t i o n f i l t e r e n a b l e d 1 0 2 . 5 3 1 2 5 / f S I N S e c o n d s
G r o u p D e l a y ( 6 4 s a m p l e s p r e - b u f f e r e d ) D i r e c t d o w n - s a m p l i n g e n a b l e d 1 0 2 / f S I N S e c o n d s
G r o u p D e l a y ( 3 2 s a m p l e s p r e - b u f f e r e d ) D e c i m a t i o n f i l t e r e n a b l e d 7 0 . 5 3 1 2 5 / f S I N S e c o n d s
G r o u p D e l a y ( 3 2 s a m p l e s p r e - b u f f e r e d ) D i r e c t d o w n - s a m p l i n g e n a b l e d 7 0 / f S I N S e c o n d s
G r o u p D e l a y ( 1 6 s a m p l e s p r e - b u f f e r e d ) D e c i m a t i o n f i l t e r e n a b l e d 5 4 . 5 3 1 2 5 / f S I N S e c o n d s
G r o u p D e l a y ( 1 6 s a m p l e s p r e - b u f f e r e d ) D i r e c t d o w n - s a m p l i n g e n a b l e d 5 4 / f S I N S e c o n d s
G r o u p D e l a y ( 8 s a m p l e s p r e - b u f f e r e d ) D e c i m a t i o n f i l t e r e n a b l e d 4 6 . 5 3 1 2 5 / f S I N S e c o n d s
G r o u p D e l a y ( 8 s a m p l e s p r e - b u f f e r e d ) D i r e c t d o w n - s a m p l i n g e n a b l e d 4 6 / f S I N S e c o n d s
D i g i t a l D e c i m a t i o n F i l t e r C h a r a c t e r i s t i c s
P a s s b a n d 0 . 4 5 3 5 × f S O U T H z
P a s s b a n d R i p p l e ± 0 . 0 0 8 d B
T r a n s i t i o n B a n d 0 . 4 5 3 5 × f S O U T 0 . 5 4 6 5 × f S O U T H z
S t o p B a n d 0 . 5 4 6 5 × f S O U T H z
S t o p B a n d A t t e n u a t i o n – 1 4 3 d B
G r o u p D e l a y D e c i m a t i o n f i l t e r e n a b l e d 3 6 . 4 6 8 7 5 / f S O U T S e c o n d s
G r o u p D e l a y D i r e c t d o w n - s a m p l i n g e n a b l e d 0 S e c o n d s
D i g i t a l D e - E m p h a s i s F i l t e r C h a r a c t e r i s t i c s
F i l t e r E r r o r f o r A l l S e t t i n g s D e - e m p h a s i s f i l t e r e n a b l e d 0 . 0 0 1 d B
( 2 ) M e a s u r e d w i t h a n A u d i o P r e c i s i o n S Y S - 2 7 2 2 1 9 2 k H z t e s t s y s t e m w i t h t h e i n p u t a n d o u t p u t s a m p l i n g f r e q u e n c i e s a s y n c h r o n o u s t o o n e a n o t h e r .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5
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E L E C T R I C A L C H A R A C T E R I S T I C S : A u d i o S e r i a l P o r t s
E L E C T R I C A L C H A R A C T E R I S T I C S : S P I I n t e r f a c e
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
E L E C T R I C A L C H A R A C T E R I S T I C S : G e n e r a l , S R C , D I R , a n d D I T ( c o n t i n u e d ) A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
D I G I T A L A U D I O I N T E R F A C E R E C E I V E R ( D I R )
P L L L o c k R a n g e 2 0 2 1 6 k H z
R e f e r e n c e C l o c k I n p u t ( R X C K I ) F r e q u e n c y , f R X C K I 3 . 5 2 7 . 7 M H z
R e f e r e n c e C l o c k I n p u t ( R X C K I ) D u t y C y c l e , f R X C K I D 4 5 5 5 %
R e c o v e r e d C l o c k O u t p u t ( R X C K O ) F r e q u e n c y , f R X C K O 3 . 5 2 7 . 7 M H z
R e c o v e r e d C l o c k O u t p u t ( R X C K O ) D u t y C y c l e , f R X C K O D 4 5 5 5 %
R e c o v e r e d C l o c k O u t p u t ( R X C K O ) I n t r i n s i c J i t t e r M e a s u r e d c y c l e - t o - c y c l e 2 5 0 p s R M S
D I G I T A L A U D I O I N T E R F A C E T R A N S M I T T E R ( D I T )
I n t r i n s i c O u t p u t J i t t e r M e a s u r e d c y c l e - t o - c y c l e 2 0 0 p s R M S
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
A U D I O S E R I A L P O R T S ( P o r t A a n d P o r t B )
L R C K C l o c k F r e q u e n c y , f L R C K 0 2 1 6 k H z
L R C K C l o c k D u t y C y c l e , t L R C K D 5 0 %
B C K C l o c k F r e q u e n c y , f B C K 0 1 3 . 8 2 4 M H z
B C K H i g h P u l s e W i d t h , t B C K H 1 0 n s
B C K L o w P u l s e W i d t h , t B C K L 1 0 n s
A u d i o D a t a I n p u t ( S D I N ) S e t u p T i m e , t A I S 1 0 n s
A u d i o D a t a I n p u t ( S D I N ) H o l d T i m e , t A I S H 1 0 n s
A u d i o D a t a O u t p u t ( S D O U T ) D e l a y , t A D D 1 0 n s
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
H O S T I N T E R F A C E : S P I M o d e
S e r i a l C l o c k ( C C L K ) F r e q u e n c y , f C C L K 0 4 0 M H z
C S F a l l i n g t o C C L K R i s i n g , t C S C R 8 n s
C C L K F a l l i n g t o C S R i s i n g , t C F C S 7 n s
C D I N D a t a S e t u p T i m e , t C D S 7 n s
C D I N D a t a H o l d T i m e , t C D H 6 n s
C C L K F a l l i n g t o C D O U T D a t a V a l i d , t C F D O 3 n s
C S R i s i n g t o C D O U T H i g h - I m p e d a n c e , t C S Z 3 n s
6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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E L E C T R I C A L C H A R A C T E R I S T I C S : I 2 C S t a n d a r d a n d F a s t M o d e s
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
H O S T I N T E R F A C E : I 2 C S t a n d a r d M o d e ( 1 )
S C L C l o c k F r e q u e n c y , f S C L 0 1 0 0 k H z
H o l d T i m e R e p e a t e d S T A R T C o n d i t i o n , t H D S T A 4 μ s
L o w P e r i o d o f S C L C l o c k , t L O W 4 . 7 μ s
H i g h P e r i o d o f S C L C l o c k , t H I G H 4 μ s
S e t u p T i m e R e p e a t e d S T A R T C o n d i t i o n , t S U S T A 4 . 7 μ s
D a t a H o l d T i m e , t H D D A T 0 ( 2 ) 3 . 4 5 ( 3 ) μ s
D a t a S e t u p T i m e , t S U D A T 2 5 0 n s
R i s e T i m e f o r B o t h S D A a n d S D L , t R 1 0 0 0 n s
F a l l T i m e f o r B o t h S D A a n d S D L , t F 3 0 0 n s
S e t u p T i m e f o r S T O P C o n d i t i o n , t S U S T O 4 μ s
B u s F r e e T i m e B e t w e e n S T A R T a n d S T O P , t B U F 4 . 7 μ s
C a p a c i t i v e L o a d f o r E a c h B u s L i n e , C B 4 0 0 p F
N o i s e M a r g i n a t L o w L e v e l ( i n c l u d i n g h y s t e r e s i s ) , V N L 0 . 1 × V I O V
N o i s e M a r g i n a t H i g h L e v e l ( i n c l u d i n g h y s t e r e s i s ) , V N H 0 . 2 × V I O V
H O S T I N T E R F A C E : I 2 C F a s t M o d e ( 1 )
S C L C l o c k F r e q u e n c y , f S C L 0 4 0 0 k H z
H o l d T i m e R e p e a t e d S T A R T C o n d i t i o n , t H D S T A 0 . 6 μ s
L o w P e r i o d o f S C L C l o c k , t L O W 1 . 3 μ s
H i g h P e r i o d o f S C L C l o c k , t H I G H 0 . 6 μ s
S e t u p T i m e R e p e a t e d S T A R T C o n d i t i o n , t S U S T A 0 . 6 μ s
D a t a H o l d T i m e , t H D D A T 0 ( 2 ) 0 . 9 ( 3 ) μ s
D a t a S e t u p T i m e , t S U D A T 1 0 0 ( 4 ) n s
R i s e T i m e f o r B o t h S D A a n d S D L , t R 2 0 + 0 . 2 C B ( 5 ) 3 0 0 n s
F a l l T i m e f o r B o t h S D A a n d S D L , t F 2 0 + 0 . 2 C B ( 5 ) 3 0 0 n s
S e t u p T i m e f o r S T O P C o n d i t i o n , t S U S T O 0 . 6 μ s
B u s F r e e T i m e B e t w e e n S T A R T a n d S T O P , t B U F 1 . 3 μ s
S p i k e P u l s e W i d t h S u p p r e s s e d b y I n p u t F i l t e r , t S P 0 5 0 n s
C a p a c i t i v e L o a d f o r E a c h B u s L i n e , C B 4 0 0 p F
N o i s e M a r g i n a t L o w L e v e l ( i n c l u d i n g h y s t e r e s i s ) , V N L 0 . 1 × V I O V
N o i s e M a r g i n a t H i g h L e v e l ( i n c l u d i n g h y s t e r e s i s ) , V N H 0 . 2 × V I O V
( 1 ) A l l v a l u e s r e f e r r e d t o t h e V I H m i n i m u m a n d V I L m a x i m u m l e v e l s l i s t e d i n t h e D i g i t a l I / O C h a r a c t e r i s t i c s s e c t i o n o f t h e E l e c t r i c a l C h a r a c t e r i s t i c s : G e n e r a l , S R C , D I R , a n d D I T t a b l e .
( 2 ) A d e v i c e m u s t i n t e r n a l l y p r o v i d e a h o l d t i m e o f a t l e a s t 3 0 0 n s f o r t h e S D A s i g n a l ( r e f e r r e d t o t h e V I H m i n i m u m i n p u t l e v e l ) t o b r i d g e t h e u n d e f i n e d r e g i o n o f t h e f a l l i n g e d g e o f S C L .
( 3 ) T h e m a x i m u m t H D D A T h a s o n l y t o b e m e t i f t h e d e v i c e d o e s n o t s t r e t c h t h e L o w p e r i o d ( t L O W ) o f t h e S C L s i g n a l . ( 4 ) A F a s t m o d e I 2 C b u s d e v i c e c a n b e u s e d i n a S t a n d a r d m o d e I 2 C b u s s y s t e m , b u t t h e r e q u i r e m e n t t h a t t S U D A T b e 2 5 0 n s m i n i m u m m u s t
t h e n b e m e t . F o r t h e S R C 4 3 9 2 , t h i s i s a u t o m a t i c a l l y t h e c a s e , s i n c e t h e d e v i c e d o e s n o t s t r e t c h t h e L o w p e r i o d o f t h e S C L s i g n a l . ( 5 ) C B i s d e f i n e d a s t h e t o t a l c a p a c i t a n c e o f o n e b u s l i n e i n p i c o f a r a d s ( p F ) . I f m i x e d w i t h H i g h - S p e e d m o d e d e v i c e s , f a s t e r f a l l t i m e s a r e
a l l o w e d .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 7
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E L E C T R I C A L C H A R A C T E R I S T I C S : P o w e r S u p p l i e s
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
S R C 4 3 9 2
P A R A M E T E R C O N D I T I O N S M I N T Y P M A X U N I T S
P O W E R S U P P L I E S
R e c o m m e n d e d S u p p l y V o l t a g e R a n g e
V D D 1 8 + 1 . 6 5 + 1 . 8 + 1 . 9 5 V
V D D 3 3 + 3 . 0 + 3 . 3 + 3 . 6 V
V I O + 1 . 6 5 + 3 . 3 + 3 . 6 V
V C C + 3 . 0 + 3 . 3 + 3 . 6 V
S u p p l y C u r r e n t : I n i t i a l S t a r t u p A l l B l o c k s P o w e r e d D o w n b y D e f a u l t
I D D 1 8 S V D D 1 8 = + 1 . 8 V 9 0 μ A
I D D 3 3 S V D D 3 3 = + 3 . 3 V 1 μ A
I I O S V I O = + 3 . 3 V 2 7 0 μ A
I C C S V C C = + 3 . 3 V 1 μ A
S u p p l y C u r r e n t : Q u i e s c e n t A l l B l o c k s P o w e r e d U p w i t h N o C l o c k s A p p l i e d
I D D 1 8 Q V D D 1 8 = + 1 . 8 V 3 . 1 m A
I D D 3 3 Q V D D 3 3 = + 3 . 3 V 0 . 5 m A
I I O Q V I O = + 3 . 3 V 0 . 2 7 m A I C C Q V C C = + 3 . 3 V 6 . 6 m A
S u p p l y C u r r e n t : D y n a m i c A l l B l o c k s P o w e r e d U p , f S = 4 8 k H z
I D D 1 8 D V D D 1 8 = + 1 . 8 V 2 3 m A
I D D 3 3 D V D D 3 3 = + 3 . 3 V 1 4 m A
I I O D ( 1 ) V I O = + 3 . 3 V 4 3 m A
I C C D V C C = + 3 . 3 V 8 m A
S u p p l y C u r r e n t : H i g h S a m p l i n g R a t e A l l B l o c k s P o w e r e d U p , f S = 1 9 2 k H z
I D D 1 8 H V D D 1 8 = + 1 . 8 V 5 8 m A
I D D 3 3 H V D D 3 3 = + 3 . 3 V 1 5 m A
I I O H ( 1 ) V I O = + 3 . 3 V 4 4 m A
I C C H V C C = + 3 . 3 V 8 m A
T o t a l P o w e r D i s s i p a t i o n : I n i t i a l S t a r t u p A l l B l o c k s P o w e r e d D o w n b y D e f a u l t 1 m W
T o t a l P o w e r D i s s i p a t i o n : Q u i e s c e n t A l l B l o c k s P o w e r e d U p w i t h N o C l o c k s A p p l i e d 3 0 m W
T o t a l P o w e r D i s s i p a t i o n : D y n a m i c A l l B l o c k s P o w e r e d U p , f S = 4 8 k H z 2 5 6 m W
T o t a l P o w e r D i s s i p a t i o n : H i g h S a m p l i n g R a t e A l l B l o c k s P o w e r e d U p , f S = 1 9 2 k H z 3 2 6 m W
( 1 ) T h e t y p i c a l V I O s u p p l y c u r r e n t i s m e a s u r e d u s i n g t h e S R C 4 3 9 2 E V M e v a l u a t i o n m o d u l e w i t h l o a d i n g f r o m t h e D A I M B m o t h e r - b o a r d c i r c u i t r y . V I O s u p p l y c u r r e n t w i l l b e d e p e n d e n t u p o n t h e l o a d i n g o n t h e l o g i c o u t p u t p i n s .
8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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T I M I N G D I A G R A M S
LRCK
BCK
SDIN
t AIS
SDOUT
t AIH
t AOD
tBCKL
tBCKH
CS
CC K L
CD NI
CDOUT
CFCS
tCDH
Hi Z Hi Z
tCSCRtCDS
tCFDO
tCSZ
SDA
SCL
S R P S
tF
tHDSTA
tLOW tR
tHDDAT
tSUDAT
tF
tBUF
S = Start nCo dition R = Repea ed Startt Condition P = Stop Co ditionn
tSUSTA tSUSTO
tHDSTA
tSP
tR
tHIGH
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 1 . A u d i o S e r i a l P o r t T i m i n g
F i g u r e 2 . S P I I n t e r f a c e T i m i n g
F i g u r e 3 . I 2 C S t a n d a r d a n d F a s t M o d e T i m i n g
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 9
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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P I N C O N F I G U R A T I O N
Top View TQFP
36
35
34
33
32
31
30
29
28
27
26
25
SYNC
BLS
AESOUT
VDD33
TX+
TX
DGND2
GPO4
GPO3
GPO2
GPO1
MCLK
B C K B
L R C K B
S D I N B
S D O U T B
B G N D
D G N D 3
V I O
N C
S D O U T A
S D I N A
L R C K A
B C K A
R X C K I
M U T E
R D Y
D G N D 1
V D D 1 8
C P M
C S
C C L K
C D I N
C D O U T
I N T
R S T
1
2
3
4
5
6
7
8
9
10
11
12
RX1+
RX1
RX2+
RX2
RX3+
RX3
RX4+
RX4
VCC
AGND
LOCK
RXCKO
48 47 46 45 44 43 42 41 40 39 38
13 14 15 16 17 18 19 20 21 22 23
37
24
SRC4392
NC = No Connection
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
P I N D E S C R I P T I O N S
N A M E P I N N U M B E R I / O D E S C R I P T I O N
R X 1 + 1 I n p u t L i n e R e c e i v e r 1 , N o n i n v e r t i n g I n p u t
R X 1 – 2 I n p u t L i n e R e c e i v e r 1 , I n v e r t i n g I n p u t
R X 2 + 3 I n p u t L i n e R e c e i v e r 2 , N o n i n v e r t i n g I n p u t
R X 2 – 4 I n p u t L i n e R e c e i v e r 2 , I n v e r t i n g I n p u t
R X 3 + 5 I n p u t L i n e R e c e i v e r 3 , N o n i n v e r t i n g I n p u t
R X 3 – 6 I n p u t L i n e R e c e i v e r 3 , I n v e r t i n g I n p u t
R X 4 + 7 I n p u t L i n e R e c e i v e r 4 , N o n i n v e r t i n g I n p u t
R X 4 – 8 I n p u t L i n e R e c e i v e r 4 , I n v e r t i n g I n p u t
V C C 9 P o w e r D I R C o m p a r a t o r a n d P L L P o w e r S u p p l y , + 3 . 3 V N o m i n a l
A G N D 1 0 G r o u n d D I R C o m p a r a t o r a n d P L L P o w e r - S u p p l y G r o u n d
L O C K 1 1 O u t p u t D I R P L L L o c k F l a g ( a c t i v e L o w )
R X C K O 1 2 O u t p u t D I R R e c o v e r e d M a s t e r C l o c k ( t r i - s t a t e o u t p u t )
R X C K I 1 3 I n p u t D I R R e f e r e n c e C l o c k M U T E 1 4 I n p u t S R C O u t p u t M u t e ( a c t i v e H i g h )
R D Y 1 5 O u t p u t S R C R e a d y F l a g ( a c t i v e L o w )
D G N D 1 1 6 G r o u n d D i g i t a l C o r e G r o u n d
V D D 1 8 1 7 P o w e r D i g i t a l C o r e S u p p l y , + 1 . 8 V N o m i n a l
C P M 1 8 I n p u t C o n t r o l P o r t M o d e , 0 = S P I M o d e , 1 = I 2 C M o d e
C S o r A 0 1 9 I n p u t C h i p S e l e c t ( a c t i v e L o w ) f o r S P I M o d e o r P r o g r a m m a b l e S l a v e A d d r e s s f o r I 2 C M o d e
C C L K o r S C L 2 0 I n p u t S e r i a l D a t a C l o c k f o r S P I M o d e o r I 2 C M o d e
C D I N o r A 1 2 1 I n p u t S P I P o r t S e r i a l D a t a i n p u t o r P r o g r a m m a b l e S l a v e A d d r e s s f o r I 2 C M o d e
C D O U T o r S D A 2 2 I / O S P I P o r t S e r i a l D a t a O u t p u t ( t r i - s t a t e o u t p u t ) o r S e r i a l D a t a I / O f o r I 2 C M o d e
1 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
P I N D E S C R I P T I O N S ( c o n t i n u e d )
N A M E P I N N U M B E R I / O D E S C R I P T I O N
I N T 2 3 O u t p u t I n t e r r u p t F l a g ( o p e n - d r a i n , a c t i v e L o w )
R S T 2 4 I n p u t R e s e t ( a c t i v e L o w )
M C L K 2 5 I n p u t M a s t e r C l o c k
G P O 1 2 6 O u t p u t G e n e r a l - P u r p o s e O u t p u t 1
G P O 2 2 7 O u t p u t G e n e r a l - P u r p o s e O u t p u t 2
G P O 3 2 8 O u t p u t G e n e r a l - P u r p o s e O u t p u t 3
G P O 4 2 9 O u t p u t G e n e r a l - P u r p o s e O u t p u t 4
D G N D 2 3 0 G r o u n d D I R L i n e R e c e i v e r B i a s a n d D I T L i n e D r i v e r D i g i t a l G r o u n d
T X – 3 1 O u t p u t D I T L i n e D r i v e r I n v e r t i n g O u t p u t
T X + 3 2 O u t p u t D I T L i n e D r i v e r N o n i n v e r t i n g O u t p u t
V D D 3 3 3 3 P o w e r D I R L i n e R e c e i v e r B i a s a n d D I T L i n e D r i v e r S u p p l y , + 3 . 3 V N o m i n a l
A E S O U T 3 4 O u t p u t D I T B u f f e r e d A E S 3 - E n c o d e d D a t a
B L S 3 5 I / O D I T B l o c k S t a r t C l o c k
S Y N C 3 6 O u t p u t D I T i n t e r n a l S y n c C l o c k
B C K A 3 7 I / O A u d i o S e r i a l P o r t A B i t C l o c k
L R C K A 3 8 I / O A u d i o S e r i a l P o r t A L e f t / R i g h t C l o c k
S D I N A 3 9 I n p u t A u d i o S e r i a l P o r t A D a t a I n p u t S D O U T A 4 0 O u t p u t A u d i o S e r i a l P o r t A D a t a O u t p u t
N C 4 1 — N o I n t e r n a l S i g n a l C o n n e c t i o n , I n t e r n a l l y B o n d e d t o E S D P a d
V I O 4 2 P o w e r L o g i c I / O S u p p l y , + 1 . 6 5 V t o + 3 . 6 V
D G N D 3 4 3 G r o u n d L o g i c I / O G r o u n d
B G N D 4 4 G r o u n d S u b s t r a t e G r o u n d , C o n n e c t t o A G N D ( p i n 1 0 )
S D O U T B 4 5 O u t p u t A u d i o S e r i a l P o r t B D a t a O u t p u t
S D I N B 4 6 I n p u t A u d i o S e r i a l P o r t B D a t a I n p u t
L R C K B 4 7 I / O A u d i o S e r i a l P o r t B L e f t / R i g h t C l o c k
B C K B 4 8 I / O A u d i o S e r i a l P o r t B B i t C l o c k
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 1 1
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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T Y P I C A L C H A R A C T E R I S T I C S
Sampling Rate (kHz)
THD+N
(dB)
32
130
132
134
136
138
140
142
144
146
148
150
52 72 92 112 132 152 172 192
Sampling Rate (kHz)
THD+N
(dB)
32
130
132
134
136
138
140
142
144
146
148
150
52 72 92 112 132 152 172 192
Sampling Rate (kHz)
THD+N
(dB)
32
130
132
134
136
138
140
142
144
146
148
150
52 72 92 112 132 152 172 192
Sampling Rate (kHz)
THD+N
(dB)
32
130
132
134
136
138
140
142
144
146
148
150
52 72 92 112 132 152 172 192
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChann
elTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChann
elTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e
n o t e d .
T H D + N v s I N P U T S A M P L I N G R A T E T H D + N v s I N P U T S A M P L I N G R A T E ( f S O U T = 4 4 . 1 k H z a n d f I N = 9 9 7 H z a t 0 d B F S ) ( f S O U T = 4 8 k H z a n d f I N = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 . F i g u r e 5 .
T H D + N v s I N P U T S A M P L I N G R A T E T H D + N v s I N P U T S A M P L I N G R A T E ( f S O U T = 9 6 k H z a n d f I N = 9 9 7 H z a t 0 d B F S ) ( f S O U T = 1 9 2 k H z a n d f I N = 9 9 7 H z a t 0 d B F S )
F i g u r e 6 . F i g u r e 7 .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 4 4 . 1 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z a n d
I n p u t A m p l i t u d e = 0 d B F S ) I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 8 . F i g u r e 9 .
1 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChann
elTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChann
elTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 4 4 . 1 k H z : 9 6 k H z a n d ( f S I N : f S O U T = 4 4 . 1 k H z : 1 9 2 k H z a n d
I n p u t A m p l i t u d e = 0 d B F S ) I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 1 0 . F i g u r e 1 1 .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z a n d I n p u t A m p l i t u d e = 0 d B F S ) ( f S I N : f S O U T = 4 8 k H z : 4 8 k H z a n d I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 1 2 . F i g u r e 1 3 .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 4 8 k H z : 9 6 k H z a n d I n p u t A m p l i t u d e = 0 d B F S ) ( f S I N : f S O U T = 4 8 k H z : 1 9 2 k H z a n d I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 1 4 . F i g u r e 1 5 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 1 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 40k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 40k
Input Frequency (Hz)
LeftChann
elTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
Input Frequency (Hz)
LeftChann
elTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 20k
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 9 6 k H z : 4 4 . 1 k H z a n d I n p u t A m p l i t u d e = 0 d B F S ) ( f S I N : f S O U T = 9 6 k H z : 4 8 k H z a n d I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 1 6 . F i g u r e 1 7 .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 9 6 k H z : 9 6 k H z a n d I n p u t A m p l i t u d e = 0 d B F S ) ( f S I N : f S O U T = 9 6 k H z : 1 9 2 k H z a n d I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 1 8 . F i g u r e 1 9 .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 1 9 2 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 1 9 2 k H z : 4 8 k H z a n d
I n p u t A m p l i t u d e = 0 d B F S ) I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 2 0 . F i g u r e 2 1 .
1 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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www.ti.com
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 40k
Input Frequency (Hz)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
100 1k 10k 80k
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChann
elTHD+N
(dB)
RightChan
nelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChann
elTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
T H D + N v s I N P U T F R E Q U E N C Y T H D + N v s I N P U T F R E Q U E N C Y ( f S I N : f S O U T = 1 9 2 k H z : 9 6 k H z a n d I n p u t A m p l i t u d e = 0 d B F S ) ( f S I N : f S O U T = 1 9 2 k H z : 1 9 2 k H z a n d I n p u t A m p l i t u d e = 0 d B F S )
F i g u r e 2 2 . F i g u r e 2 3 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 4 4 . 1 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z ) I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 2 4 . F i g u r e 2 5 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 4 4 . 1 k H z : 9 6 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 4 4 . 1 k H z : 1 9 2 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 2 6 . F i g u r e 2 7 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 1 5
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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www.ti.com
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftCha
nnelTHD+N
(dB)
RightCh
annelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftCha
nnelTHD+N
(dB)
RightCh
annelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 4 8 k H z : 4 8 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 2 8 . F i g u r e 2 9 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 4 8 k H z : 9 6 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 4 8 k H z : 1 9 2 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 3 0 . F i g u r e 3 1 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 9 6 k H z : 4 4 . 1 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 9 6 k H z : 4 8 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 3 2 . F i g u r e 3 3 .
1 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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www.ti.com
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftChannelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftCha
nnelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
Input Amplitude (dBFS)
LeftCha
nnelTHD+N
(dB)
RightChannelTHD+N
(dB)
140 120 100 80 60 40 20
120
124
128
132
136
140
144
148
152
156
160
120
124
128
132
136
140
144
148
152
156
160
0
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 9 6 k H z : 9 6 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 9 6 k H z : 1 9 2 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 3 4 . F i g u r e 3 5 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 1 9 2 k H z : 4 4 . 1 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 1 9 2 k H z : 4 8 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 3 6 . F i g u r e 3 7 .
T H D + N v s I N P U T A M P L I T U D E T H D + N v s I N P U T A M P L I T U D E ( f S I N : f S O U T = 1 9 2 k H z : 9 6 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z ) ( f S I N : f S O U T = 1 9 2 k H z : 1 9 2 k H z a n d I n p u t F r e q u e n c y = 9 9 7 H z )
F i g u r e 3 8 . F i g u r e 3 9 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 1 7
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 22k
Frequency (Hz)
20 100 1k 10k 24k
Amplitude(dB)
0
20
40
60
80
100
120
140
160
180
200
Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 48k
Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 96k
Frequency (Hz)
20 100 1k 10k 22k
mp
tu
e
20
40
60
80100
120
140
160
180
200
Frequency (Hz)
20 100 1k 10k 24k
Amplitude(d
B)
0
20
40
60
80100
120
140
160
180
200
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 4 4 . 1 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 0 . F i g u r e 4 1 .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 4 4 . 1 k H z : 9 6 k H z a n d ( f S I N : f S O U T = 4 4 . 1 k H z : 1 9 2 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 2 . F i g u r e 4 3 .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 4 8 k H z : 4 8 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 4 . F i g u r e 4 5 .
1 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 48k
Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 96k
Frequency (Hz)
20 100 1k 10k 22k
Amplitude(dB)
20
40
60
80
100
120
140
160
180
200
Frequency (Hz)
20 100 1k 10k 24k
Amplitude(dB)
20
40
60
80
100
120
140
160
180
200
Frequency (Hz)
Amplitude(
dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 48k
Frequency (Hz)
Amplitude(
dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 96k
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 4 8 k H z : 9 6 k H z a n d ( f S I N : f S O U T = 4 8 k H z : 1 9 2 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 6 . F i g u r e 4 7 .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 9 6 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 9 6 k H z : 4 8 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 4 8 . F i g u r e 4 9 .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 9 6 k H z : 9 6 k H z a n d ( f S I N : f S O U T = 9 6 k H z : 1 9 2 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 5 0 . F i g u r e 5 1 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 1 9
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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Frequency (Hz)
20 100 1k 10k 24k
Amplitude(dB)
20
40
60
80
100
120
140
160
180
200
Frequency (Hz)
20 100 1k 10k 22k
Amplitude(dB)
0
20
40
60
80
100
120
140
160
180
200
Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 48k
Frequency (Hz)
Amplitude(dB)
20
0
20
40
60
80
100
120
140
160
180
200
100 1k 10k 96k
Frequency (kHz)
0 2 4 6 8 10 12 14 16 18 20 22 24
Amplitude(d
B)
0
20
40
60
80100
120
140
160
180
200
Frequency (kHz)
0 2 4 6 8 10 12 14 16 18 20 22
Amplitude(d
B)
0
20
40
60
80100
120
140
160
180
200
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 1 9 2 k H z : 4 4 . 1 k H z a n d ( f S I N : f S O U T = 1 9 2 k H z : 4 8 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 5 2 . F i g u r e 5 3 .
F F T P L O T F F T P L O T ( f S I N : f S O U T = 1 9 2 k H z : 9 6 k H z a n d ( f S I N : f S O U T = 1 9 2 k H z : 1 9 2 k H z a n d
I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S ) I n p u t F r e q u e n c y = 9 9 7 H z a t 0 d B F S )
F i g u r e 5 4 . F i g u r e 5 5 .
I M D I M D ( f S I N : f S O U T = 4 4 . 1 k H z : 4 8 k H z , S M P T E / D I N 1 : 1 , 1 0 k H z a n d ( f S I N : f S O U T = 4 8 k H z : 4 4 . 1 k H z , S M P T E / D I N 1 : 1 , 1 0 k H z a n d
1 1 k H z , a n d – 0 . 1 d B I n p u t A m p l i t u d e ) 1 1 k H z , a n d – 0 . 1 d B I n p u t A m p l i t u d e )
F i g u r e 5 6 . F i g u r e 5 7 .
2 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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Frequency (kHz)
0 2 4 6 8 10 12 14 16 18 20 22 24
Amplitude(dB)
20
40
60
80
100
120
140
160
180
200
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )
A l l s p e c i f i c a t i o n s a r e a t T A = + 2 5 ° C , V D D 1 8 = + 1 . 8 V , V D D 3 3 = + 3 . 3 V , V I O = + 3 . 3 V , a n d V C C = + 3 . 3 V , u n l e s s o t h e r w i s e n o t e d .
I M D ( f S I N : f S O U T = 9 6 k H z : 4 8 k H z , S M P T E / D I N 1 : 1 , 1 0 k H z a n d 1 1 k H z ,
a n d – 0 . 1 d B I n p u t A m p l i t u d e )
F i g u r e 5 8 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 2 1
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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P R O D U C T O V E R V I E W
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e S R C 4 3 9 2 i s a t w o - c h a n n e l a s y n c h r o n o u s s a m p l e r a t e c o n v e r t e r ( S R C ) w i t h a n i n t e g r a t e d d i g i t a l a u d i o i n t e r f a c e r e c e i v e r a n d t r a n s m i t t e r ( D I R a n d D I T ) . T w o a u d i o s e r i a l p o r t s , P o r t A a n d P o r t B , s u p p o r t i n p u t a n d o u t p u t i n t e r f a c i n g t o e x t e r n a l d a t a c o n v e r t e r s , s i g n a l p r o c e s s o r s , a n d l o g i c d e v i c e s . O n - c h i p r o u t i n g l o g i c p r o v i d e s f o r f l e x i b l e i n t e r c o n n e c t i o n b e t w e e n t h e f i v e f u n c t i o n a l b l o c k s . T h e a u d i o s e r i a l p o r t s , D I T , a n d S R C m a y
b e o p e r a t e d a t s a m p l i n g r a t e s u p t o 2 1 6 k H z . T h e D I R i s s p e c i f i e d f o r a P L L l o c k r a n g e t h a t i n c l u d e s s a m p l i n g r a t e s f r o m 2 0 k H z t o 2 1 6 k H z . A l l f u n c t i o n b l o c k s s u p p o r t a u d i o d a t a w o r d l e n g t h s u p t o 2 4 b i t s .
T h e S R C 4 3 9 2 r e q u i r e s a n e x t e r n a l h o s t p r o c e s s o r o r l o g i c f o r c o n f i g u r a t i o n c o n t r o l . T h e S R C 4 3 9 2 i n c l u d e s a u s e r - s e l e c t a b l e s e r i a l h o s t i n t e r f a c e , w h i c h o p e r a t e s a s e i t h e r a 4 - w i r e s e r i a l p e r i p h e r a l i n t e r f a c e ( S P I ) p o r t o r a 2 - w i r e P h i l i p s I 2 C b u s i n t e r f a c e . T h e S P I p o r t o p e r a t e s a t b i t r a t e s u p t o 4 0 M H z . T h e I 2 C b u s i n t e r f a c e m a y b e o p e r a t e d i n s t a n d a r d o r f a s t m o d e s , s u p p o r t i n g o p e r a t i o n a t 1 0 0 k b p s a n d 4 0 0 k b p s , r e s p e c t i v e l y . T h e S P I a n d I 2 C i n t e r f a c e s p r o v i d e a c c e s s t o i n t e r n a l c o n t r o l a n d s t a t u s r e g i s t e r s , a s w e l l a s t h e b u f f e r s u t i l i z e d f o r t h e D I R a n d D I T c h a n n e l s t a t u s a n d u s e r d a t a .
T h e a s y n c h r o n o u s S R C i s b a s e d u p o n t h e s u c c e s s f u l S R C 4 1 9 2 c o r e f r o m T e x a s I n s t r u m e n t s . T h e S R C i n t h e S R C 4 3 9 2 h a s b e e n f u r t h e r e n h a n c e d t o p r o v i d e e x c e p t i o n a l j i t t e r a t t e n u a t i o n c h a r a c t e r i s t i c s , h e l p i n g t o i m p r o v e o v e r a l l a p p l i c a t i o n p e r f o r m a n c e . T h e S R C o p e r a t e s o v e r a w i d e i n p u t - t o - o u t p u t s a m p l i n g r a t i o r a n g e , f r o m 1 : 1 6 t o 1 6 : 1 c o n t i n u o u s . T h e i n p u t - t o - o u t p u t s a m p l i n g r a t i o i s d e t e r m i n e d a u t o m a t i c a l l y b y t h e S R C r a t e e s t i m a t i o n c i r c u i t r y , w i t h t h e d i g i t a l r e - s a m p l e r p a r a m e t e r s b e i n g u p d a t e d i n r e a l - t i m e w i t h o u t t h e n e e d f o r p r o g r a m m i n g .
I n t e r p o l a t i o n a n d d e c i m a t i o n f i l t e r d e l a y a r e u s e r - s e l e c t a b l e . A d d i t i o n a l S R C f e a t u r e s i n c l u d e d e - e m p h a s i s f i l t e r i n g , o u t p u t w o r d l e n g t h r e d u c t i o n , o u t p u t a t t e n u a t i o n a n d m u t i n g , a n d i n p u t - t o - o u t p u t s a m p l i n g r a t i o r e a d b a c k v i a s t a t u s r e g i s t e r s .
T h e d i g i t a l i n t e r f a c e r e c e i v e r ( D I R ) i n c l u d e s f o u r d i f f e r e n t i a l i n p u t l i n e r e c e i v e r c i r c u i t s , s u i t a b l e f o r b a l a n c e d o r u n b a l a n c e d c a b l e i n t e r f a c e s . I n t e r f a c i n g t o o p t i c a l r e c e i v e r m o d u l e s a n d C M O S l o g i c d e v i c e s i s a l s o s u p p o r t e d . T h e o u t p u t s o f t h e l i n e r e c e i v e r s a r e c o n n e c t e d t o a 1 - o f - 4 d a t a s e l e c t o r , r e f e r r e d t o a s t h e r e c e i v e r i n p u t m u l t i p l e x e r , w h i c h i s u t i l i z e d t o s e l e c t o n e o f t h e f o u r l i n e r e c e i v e r o u t p u t s f o r p r o c e s s i n g b y t h e D I R c o r e . T h e o u t p u t s o f t h e l i n e r e c e i v e r s a r e a l s o c o n n e c t e d t o a s e c o n d d a t a s e l e c t o r , t h e b y p a s s m u l t i p l e x e r , w h i c h m a y b e u s e d t o r o u t e i n p u t d a t a s t r e a m s t o t h e D I T C M O S o u t p u t b u f f e r a n d d i f f e r e n t i a l l i n e d r i v e r f u n c t i o n s . T h i s c o n f i g u r a t i o n p r o v i d e s a b y p a s s s i g n a l p a t h f o r A E S 3 - e n c o d e d i n p u t d a t a s t r e a m s .
T h e D I R c o r e d e c o d e s t h e s e l e c t e d i n p u t s t r e a m d a t a a n d s e p a r a t e s t h e a u d i o , c h a n n e l s t a t u s , u s e r , v a l i d i t y , a n d p a r i t y d a t a . C h a n n e l s t a t u s a n d u s e r d a t a i s s t o r e d i n b l o c k - s i z e d b u f f e r s , w h i c h m a y b e a c c e s s e d v i a t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e , o r r o u t e d d i r e c t l y t o t h e g e n e r a l - p u r p o s e o u t p u t p i n s ( G P O 1 t h r o u g h G P O 4 ) . T h e v a l i d i t y
a n d p a r i t y b i t s a r e p r o c e s s e d t o d e t e r m i n e e r r o r s t a t u s . T h e D I R c o r e r e c o v e r s a l o w j i t t e r m a s t e r c l o c k , w h i c h m a y b e u t i l i z e d t o g e n e r a t e w o r d a n d b i t c l o c k s u s i n g o n - c h i p o r e x t e r n a l l o g i c c i r c u i t r y .
T h e d i g i t a l i n t e r f a c e t r a n s m i t t e r ( D I T ) e n c o d e s d i g i t a l a u d i o i n p u t d a t a i n t o a n A E S 3 - f o r m a t t e d o u t p u t d a t a s t r e a m . T w o D I T o u t p u t s a r e p r o v i d e d , i n c l u d i n g a d i f f e r e n t i a l l i n e d r i v e r a n d a C M O S o u t p u t b u f f e r . B o t h t h e l i n e d r i v e r a n d b u f f e r i n c l u d e 1 - o f - 2 i n p u t d a t a s e l e c t o r s , w h i c h a r e u t i l i z e d t o c h o o s e e i t h e r t h e o u t p u t o f t h e D I T A E S 3 e n c o d e r , o r t h e o u t p u t o f t h e b y p a s s m u l t i p l e x e r . T h e l i n e d r i v e r o u t p u t i s s u i t a b l e f o r b a l a n c e d o r u n b a l a n c e d c a b l e i n t e r f a c e s , w h i l e t h e C M O S o u t p u t b u f f e r s u p p o r t s i n t e r f a c i n g t o o p t i c a l t r a n s m i t t e r m o d u l e s a n d e x t e r n a l l o g i c o r l i n e d r i v e r s . T h e D I T i n c l u d e s b l o c k - s i z e d d a t a b u f f e r s f o r b o t h c h a n n e l s t a t u s a n d u s e r d a t a . T h e s e b u f f e r s a r e a c c e s s e d v i a e i t h e r t h e S P I o r I 2 C h o s t i n t e r f a c e , o r m a y b e l o a d e d d i r e c t l y f r o m t h e D I R c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s .
T h e S R C 4 3 9 2 i n c l u d e s f o u r g e n e r a l - p u r p o s e d i g i t a l o u t p u t s , o r G P O p i n s . T h e G P O p i n s m a y b e c o n f i g u r e d a s s i m p l e l o g i c o u t p u t s , w h i c h m a y b e p r o g r a m m e d t o e i t h e r a l o w o r h i g h s t a t e . A l t e r n a t i v e l y , t h e G P O p i n s m a y b e c o n n e c t e d t o o n e o f 1 4 i n t e r n a l l o g i c n o d e s , a l l o w i n g t h e m t o s e r v e a s f u n c t i o n a l , s t a t u s , o r i n t e r r u p t o u t p u t s . T h e
G P O p i n s p r o v i d e a d d e d u t i l i t y i n a p p l i c a t i o n s w h e r e h a r d w a r e a c c e s s t o s e l e c t e d i n t e r n a l l o g i c s i g n a l s m a y b e n e c e s s a r y .
2 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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DIR_OUT
SRC_OUT
PORT_A_IN
PORT_B_IN
Audio Serial
Port A
Audio SerialPort B
Digital
InterfaceReceiver (DIR)
Digital
InterfaceTransmitter
(DIT)
Asynchronous
Sample RateConverter
(SRC)
TX+TX
SDINA
SDOUTA
LRCKA
BC AK
SDINB
SDOUTB
LRCKB
BC BK
CPMCS or A0CCLK or SCL
CDIN or 1 ACDOUT or SDAINTRST
Host
Interface(SPI or I C)
2
andGene ar l-
Purp so eOutputs
Master
Cl ckoDistribution
MC K L
RXCKIFrom RXCKO
GP 1OGP 2OGP 3OGP 4O
AESOUT
RXCKO
LOCK
RX +2
RX 2RX +3
RX 3
RX +4
RX 4
RX +1
RX 1
RDY
MU ET
BLS
SY CN
PORTA
PORTB
DIR
DIT
SRC
Control and Status
Registers
DIR C and U
Data Buffers
DIT C and UData Buffers
SRC4392
Power
VDD18DGND1VDD33DGND2VIODGND3VCC AG DN
BG DNInternally Tied
to Substrate
R E S E T O P E R A T I O N
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 5 9 s h o w s a s i m p l i f i e d f u n c t i o n a l b l o c k d i a g r a m f o r t h e S R C 4 3 9 2 . A d d i t i o n a l d e t a i l s f o r e a c h f u n c t i o n b l o c k w i l l b e c o v e r e d i n r e s p e c t i v e s e c t i o n s o f t h i s d a t a s h e e t .
F i g u r e 5 9 . F u n c t i o n a l B l o c k D i a g r a m
T h e S R C 4 3 9 2 i n c l u d e s a n a s y n c h r o n o u s a c t i v e l o w r e s e t i n p u t , R S T ( p i n 2 4 ) , w h i c h m a y b e u s e d t o i n i t i a l i z e t h e i n t e r n a l l o g i c a t a n y t i m e . T h e r e s e t s e q u e n c e f o r c e s a l l r e g i s t e r s a n d b u f f e r s t o t h e i r d e f a u l t s e t t i n g s . T h e r e s e t l o w p u l s e w i d t h m u s t b e a m i n i m u m o f 5 0 0 n s i n l e n g t h . T h e u s e r s h o u l d n o t a t t e m p t a w r i t e o r r e a d o p e r a t i o n u s i n g e i t h e r t h e S P I o r I 2 C p o r t f o r a t l e a s t 5 0 0 μ s a f t e r t h e r i s i n g e d g e o f R S T . S e e F i g u r e 6 0 f o r t h e r e s e t t i m i n g s e q u e n c e o f t h e S R C 4 3 9 2 .
I n a d d i t i o n t o r e s e t i n p u t , t h e R E S E T b i t i n c o n t r o l r e g i s t e r 0 x 0 1 m a y b e u s e d t o f o r c e a n i n t e r n a l r e s e t , w h e r e b y a l l r e g i s t e r s a n d b u f f e r s a r e f o r c e d t o t h e i r d e f a u l t s e t t i n g s . R e f e r t o t h e C o n t r o l R e g i s t e r s s e c t i o n f o r d e t a i l s r e g a r d i n g t h e R E S E T b i t f u n c t i o n .
U p o n r e s e t i n i t i a l i z a t i o n , a l l f u n c t i o n a l b l o c k s o f t h e S R C 4 3 9 2 d e f a u l t t o t h e p o w e r - d o w n s t a t e , w i t h t h e e x c e p t i o n o f t h e S P I o r I 2 C h o s t i n t e r f a c e a n d t h e c o r r e s p o n d i n g c o n t r o l r e g i s t e r s . T h e u s e r m a y t h e n p r o g r a m t h e S R C 4 3 9 2 t o t h e d e s i r e d c o n f i g u r a t i o n , a n d r e l e a s e t h e d e s i r e d f u n c t i o n b l o c k s f r o m t h e p o w e r - d o w n s t a t e u t i l i z i n g t h e c o r r e s p o n d i n g b i t s i n c o n t r o l r e g i s t e r 0 x 0 1 .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 2 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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RST
0
1
500ns (min) 500 s (min)
Write or Readvia
S I orP I C2
M A S T E R A N D R E F E R E N C E C L O C K S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 6 0 . R e s e t S e q u e n c e T i m i n g
T h e S R C 4 3 9 2 i n c l u d e s t w o c l o c k i n p u t s , M C L K ( p i n 2 5 ) a n d R X C K I ( p i n 1 3 ) . T h e M C L K c l o c k i n p u t i s t y p i c a l l y u s e d a s t h e m a s t e r c l o c k s o u r c e f o r t h e a u d i o s e r i a l p o r t s , t h e D I T , a n d / o r t h e S R C . T h e M C L K m a y a l s o b e u t i l i z e d a s t h e r e f e r e n c e c l o c k f o r t h e D I R . T h e R X C K I c l o c k i n p u t i s t y p i c a l l y u s e d f o r t h e D I R r e f e r e n c e c l o c k s o u r c e , a l t h o u g h i t m a y a l s o b e u s e d a s t h e m a s t e r o r r e f e r e n c e c l o c k s o u r c e f o r t h e a u d i o s e r i a l p o r t s a n d / o r t h e S R C .
I n a d d i t i o n t o t h e M C L K a n d R X C K I c l o c k s o u r c e s , t h e D I R c o r e r e c o v e r s a m a s t e r c l o c k f r o m t h e A E S 3 - e n c o d e d i n p u t d a t a s t r e a m . T h i s c l o c k i s s u i t a b l e f o r u s e a s a m a s t e r o r s y s t e m c l o c k s o u r c e i n m a n y a p p l i c a t i o n s . T h e r e c o v e r e d m a s t e r c l o c k o u t p u t , R X C K O ( p i n 1 2 ) , m a y b e u t i l i z e d a s t h e m a s t e r o r r e f e r e n c e c l o c k s o u r c e f o r t h e a u d i o s e r i a l p o r t s , t h e D I T , a n d / o r t h e S R C , a s w e l l a s e x t e r n a l a u d i o d e v i c e s .
T h e m a s t e r c l o c k f r e q u e n c y f o r t h e a u d i o s e r i a l p o r t s ( P o r t A a n d P o r t B ) d e p e n d s o n t h e S l a v e o r M a s t e r m o d e c o n f i g u r a t i o n o f t h e p o r t . I n S l a v e m o d e , t h e p o r t s d o n o t r e q u i r e a m a s t e r c l o c k , a s t h e l e f t / r i g h t w o r d a n d b i t c l o c k s a r e i n p u t s , s o u r c e d f r o m a n e x t e r n a l a u d i o d e v i c e s e r v i n g a s t h e s e r i a l b u s t i m i n g m a s t e r . I n M a s t e r m o d e , t h e s e r i a l p o r t s d e r i v e t h e l e f t / r i g h t w o r d a n d b i t c l o c k o u t p u t s f r o m t h e s e l e c t e d m a s t e r c l o c k s o u r c e , M C L K , R X C K I , o r R X C K O . T h e l e f t / r i g h t w o r d c l o c k r a t e i s d e r i v e d f r o m t h e s e l e c t e d m a s t e r c l o c k s o u r c e u s i n g o n e o f f o u r c l o c k d i v i d e r s e t t i n g s ( d i v i d e b y 1 2 8 , 2 5 6 , 3 8 4 , o r 5 1 2 ) . R e f e r t o t h e A u d i o S e r i a l P o r t O p e r a t i o n s e c t i o n f o r a d d i t i o n a l d e t a i l s .
T h e D I T a l w a y s r e q u i r e s a m a s t e r c l o c k s o u r c e , w h i c h m a y b e e i t h e r t h e M C L K i n p u t , o r t h e D I R r e c o v e r e d c l o c k
o u t p u t , R X C K O . L i k e t h e a u d i o s e r i a l p o r t s , t h e D I T o u t p u t f r a m e r a t e i s d e r i v e d f r o m t h e s e l e c t e d m a s t e r c l o c k u s i n g o n e o f f o u r c l o c k d i v i d e r s e t t i n g s ( d i v i d e b y 1 2 8 , 2 5 6 , 3 8 4 , o r 5 1 2 ) . R e f e r t o t h e D i g i t a l I n t e r f a c e T r a n s m i t t e r ( D I T ) O p e r a t i o n s e c t i o n f o r a d d i t i o n a l d e t a i l s .
T h e D I R r e f e r e n c e c l o c k m a y b e a n y f r e q u e n c y t h a t m e e t s t h e P L L 1 s e t u p r e q u i r e m e n t s , d e s c r i b e d i n t h e C o n t r o l R e g i s t e r s s e c t i o n . T y p i c a l l y , a c o m m o n a u d i o s y s t e m c l o c k r a t e , s u c h a s 1 1 . 2 8 9 6 M H z , 1 2 . 2 8 8 M H z , 2 2 . 5 7 9 2 M H z , o r 2 4 . 5 7 6 M H z , m a y b e u s e d f o r t h i s c l o c k .
T h e S R C r e f e r e n c e c l o c k r a t e m a y b e a n y f r e q u e n c y u p t o 2 7 . 7 M H z , a n d d o e s n o t h a v e t o b e r e l a t e d t o o r s y n c h r o n o u s w i t h t h e i n p u t o r o u t p u t s a m p l i n g r a t e s . T h e M C L K , R X C K I , o r R X C K O c l o c k s m a y b e u t i l i z e d a s t h e r e f e r e n c e c l o c k s o u r c e f o r t h e S R C . R e f e r t o t h e A s y n c h r o n o u s S a m p l e R a t e C o n v e r t e r ( S R C ) O p e r a t i o n s e c t i o n f o r a d d i t i o n a l d e t a i l s .
I t i s r e c o m m e n d e d t h a t t h e c l o c k s o u r c e s f o r M C L K a n d R X C K I i n p u t b e g e n e r a t e d b y l o w - j i t t e r c r y s t a l o s c i l l a t o r s f o r o p t i m a l p e r f o r m a n c e . I n g e n e r a l , p h a s e - l o c k e d l o o p ( P L L ) c l o c k s y n t h e s i z e r s s h o u l d b e a v o i d e d , u n l e s s t h e y
a r e d e s i g n e d a n d / o r s p e c i f i e d f o r l o w c l o c k j i t t e r .
2 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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A U D I O S E R I A L P O R T O P E R A T I O N
Master
Clock
Source
Master
Mo ed
Clock
Generation
Serial
Input
Serial
Output
MC K L
RXCKI
RXCKO
Audio Data
Internal Clocks
Port A
Port B
DIR
SRC
OUTS[1:0] MU ET F T[1:M 0]
M/S DIV 1:[ 0]CLK 1:[ 0]
SD NI A (pin 39) or SDINB (pin 4 )6
LRCKA (pin 3 ) or8 LRCKB ( i 47)p n
BCKA (pin 37) or BCKB (pin 48)
SDOUTA (pin 40) or SDOUTB (pin 45)
Da at
Source
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e S R C 4 3 9 2 i n c l u d e s t w o a u d i o s e r i a l p o r t s , P o r t A a n d P o r t B . B o t h p o r t s a r e 4 - w i r e s y n c h r o n o u s s e r i a l i n t e r f a c e s , s u p p o r t i n g s i m u l t a n e o u s i n p u t a n d o u t p u t o p e r a t i o n . S i n c e e a c h p o r t h a s o n l y o n e p a i r o f l e f t / r i g h t w o r d a n d b i t c l o c k s , t h e i n p u t a n d o u t p u t s a m p l i n g r a t e s a r e i d e n t i c a l . A s i m p l i f i e d b l o c k d i a g r a m i s s h o w n i n F i g u r e 6 1 .
T h e a u d i o s e r i a l p o r t s m a y b e o p e r a t e d a t s a m p l i n g r a t e s u p t o 2 1 6 k H z , a n d s u p p o r t a u d i o d a t a w o r d l e n g t h s u p t o 2 4 b i t s . P h i l i p s I 2 S , L e f t - J u s t i f i e d , a n d R i g h t - J u s t i f i e d s e r i a l d a t a f o r m a t s a r e s u p p o r t e d . R e f e r t o F i g u r e 6 2 .
T h e l e f t / r i g h t w o r d c l o c k ( L R C K A o r L R C K B ) a n d t h e b i t c l o c k ( B C K A o r B C K B ) m a y b e c o n f i g u r e d f o r e i t h e r M a s t e r o r S l a v e m o d e o p e r a t i o n . I n M a s t e r m o d e t h e s e c l o c k s a r e o u t p u t s , d e r i v e d f r o m t h e s e l e c t e d m a s t e r c l o c k s o u r c e u s i n g i n t e r n a l c l o c k d i v i d e r s . T h e m a s t e r c l o c k s o u r c e m a y b e 1 2 8 , 2 5 6 , 3 8 4 , o r 5 1 2 t i m e s t h e a u d i o i n p u t / o u t p u t s a m p l i n g r a t e , w i t h t h e c l o c k d i v i d e r b e i n g s e l e c t e d u s i n g c o n t r o l r e g i s t e r b i t s f o r e a c h p o r t . I n S l a v e m o d e t h e l e f t / r i g h t w o r d a n d b i t c l o c k s a r e i n p u t s , b e i n g s o u r c e d f r o m a n e x t e r n a l a u d i o d e v i c e a c t i n g a s t h e s e r i a l b u s m a s t e r .
T h e L R C K A o r L R C K B c l o c k s o p e r a t e a t t h e i n p u t / o u t p u t s a m p l i n g r a t e , f S . T h e B C K A a n d B C K B c l o c k r a t e s a r e f i x e d a t 6 4 t i m e s t h e l e f t / r i g h t w o r d c l o c k r a t e i n M a s t e r m o d e . F o r S l a v e m o d e , t h e m i n i m u m B C K A a n d B C K B c l o c k r a t e i s d e t e r m i n e d b y t h e a u d i o d a t a w o r d l e n g t h m u l t i p l i e d b y t w o , s i n c e t h e r e a r e t w o a u d i o d a t a c h a n n e l s p e r l e f t / r i g h t w o r d c l o c k p e r i o d . F o r e x a m p l e , i f t h e a u d i o d a t a w o r d l e n g t h i s 2 4 b i t s , t h e b i t c l o c k r a t e m u s t b e a t l e a s t 4 8 t i m e s t h e l e f t / r i g h t w o r d c l o c k r a t e , a l l o w i n g o n e b i t c l o c k p e r i o d f o r e a c h d a t a b i t i n t h e s e r i a l b i t s t r e a m .
S e r i a l a u d i o d a t a i s c l o c k e d i n t o t h e p o r t o n t h e r i s i n g e d g e o f t h e b i t c l o c k , w h i l e d a t a i s c l o c k e d o u t o f t h e p o r t o n t h e f a l l i n g e d g e o f t h e b i t c l o c k . R e f e r t o t h e E l e c t r i c a l C h a r a c t e r i s t i c s : A u d i o S e r i a l P o r t s t a b l e f o r p a r a m e t r i c i n f o r m a t i o n a n d F i g u r e 1 f o r a t i m i n g d i a g r a m r e l a t e d t o a u d i o s e r i a l p o r t o p e r a t i o n .
T h e a u d i o s e r i a l p o r t s a r e c o n f i g u r e d u s i n g c o n t r o l r e g i s t e r s 0 x 0 3 t h r o u g h 0 x 0 6 . R e f e r t o t h e C o n t r o l R e g i s t e r s s e c t i o n f o r d e s c r i p t i o n s o f t h e c o n t r o l r e g i s t e r b i t s .
F i g u r e 6 1 . A u d i o S e r i a l P o r t B l o c k D i a g r a m
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 2 5
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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MSB LSB MSB LSB
MSB LSB MSB LSB
LSBMSB LSBMSB
LRCKA
LRCKB
BC AK
BC BK
Audio
Da at
LRCKA
LRCKB
BC AK
BC BK
Audio
Da at
LRCKA
LRCKB
BC AK
BC BK
Audio
Da at
(a) Left-Justified Data For am t
(b) Right-Justif e Dai d ta Form ta
(c) I S Data Fo m tr a2
1/f s
Channel 1 (Left Channel) Channel 2 (Right Channel)
O V E R V I E W O F T H E A E S 3 D I G I T A L A U D I O I N T E R F A C E P R O T O C O L
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 6 2 . A u d i o D a t a F o r m a t s
T h i s s e c t i o n i n t r o d u c e s t h e b a s i c s o f d i g i t a l a u d i o i n t e r f a c e p r o t o c o l s p e r t a i n i n g t o t h e t r a n s m i t t e r ( D I T ) a n d r e c e i v e r ( D I R ) b l o c k s o f t h e S R C 4 3 9 2 . E m p h a s i s i s p l a c e d u p o n d e f i n i n g t h e b a s i c t e r m i n o l o g y a n d c h a r a c t e r i s t i c s a s s o c i a t e d w i t h t h e A E S 3 - 2 0 0 3 s t a n d a r d p r o t o c o l , t h e p r i n c i p l e s o f w h i c h m a y a l s o b e a p p l i e d t o a n u m b e r o f c o n s u m e r - i n t e r f a c e v a r i a t i o n s , i n c l u d i n g S / P D I F , I E C - 6 0 9 5 8 , a n d E I A J C P - 1 2 0 1 . I t i s a s s u m e d t h a t t h e r e a d e r i s f a m i l i a r w i t h t h e A E S 3 a n d S / P D I F i n t e r f a c e f o r m a t s . A d d i t i o n a l i n f o r m a t i o n i s a v a i l a b l e f r o m t h e s o u r c e s l i s t e d i n t h e R e f e r e n c e D o c u m e n t s s e c t i o n .
T h e A E S 3 - 2 0 0 3 s t a n d a r d d e f i n e s a t e c h n i q u e f o r t w o - c h a n n e l l i n e a r P C M d a t a t r a n s m i s s i o n o v e r 1 1 0 Ω s h i e l d e d t w i s t e d - p a i r c a b l e . T h e A E S - 3 i d d o c u m e n t e x t e n d s t h e A E S 3 i n t e r f a c e t o a p p l i c a t i o n s e m p l o y i n g 7 5 Ω c o a x i a l c a b l e c o n n e c t i o n s . I n a d d i t i o n , c o n s u m e r t r a n s m i s s i o n v a r i a n t s , s u c h a s t h o s e d e f i n e d b y t h e S / P D I F , I E C 6 0 9 5 8 , a n d C P - 1 2 0 1 s t a n d a r d s , u t i l i z e t h e s a m e e n c o d i n g t e c h n i q u e s b u t w i t h d i f f e r e n t p h y s i c a l i n t e r f a c e s o r t r a n s m i s s i o n m e d i a . C h a n n e l s t a t u s d a t a d e f i n i t i o n s a l s o v a r y b e t w e e n p r o f e s s i o n a l a n d c o n s u m e r i n t e r f a c e i m p l e m e n t a t i o n s .
2 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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X Channel 1 Y Channel 2 Channel 1Z Y Channel 2 X Channel 1 Y Channel 2
Frame 191 Frame 0 Frame 1
Block Start
One Sub Frame
Bits: 0 3 4 7 8 27 28 29 30 31
MSB V U C PPreamble Audio Data Audio or Aux Data
Validity Bit
Use Dr ata
Channel Status Data
P rita y Bit
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F o r A E S 3 t r a n s m i s s i o n , d a t a i s e n c o d e d i n t o f r a m e s , w i t h e a c h f r a m e c o n t a i n i n g t w o s u b f r a m e s o f a u d i o a n d s t a t u s d a t a , c o r r e s p o n d i n g t o a u d i o C h a n n e l s 1 a n d 2 ( o r L e f t a n d R i g h t , r e s p e c t i v e l y , f o r s t e r e o p h o n i c a u d i o ) . F i g u r e 6 3 s h o w s t h e A E S 3 f r a m e a n d s u b f r a m e f o r m a t t i n g . E a c h s u b f r a m e i n c l u d e s f o u r b i t s f o r t h e p r e a m b l e , u p t o 2 4 b i t s f o r a u d i o a n d / o r a u x i l i a r y d a t a , o n e b i t i n d i c a t i n g d a t a v a l i d i t y ( V ) , o n e b i t f o r c h a n n e l s t a t u s d a t a ( C ) , o n e b i t f o r u s e r d a t a ( U ) , a n d o n e b i t f o r s e t t i n g p a r i t y ( P ) .
T h e 4 - b i t p r e a m b l e i s u s e d f o r s y n c h r o n i z a t i o n a n d i d e n t i f i c a t i o n o f b l o c k s a n d s u b f r a m e s . T h e X a n d Y p r e a m b l e
c o d e s a r e u s e d t o i d e n t i f y t h e s t a r t o f t h e C h a n n e l 1 a n d C h a n n e l 2 s u b f r a m e s , a s s h o w n i n F i g u r e 6 3 . H o w e v e r , t h e X p r e a m b l e f o r t h e f i r s t s u b f r a m e o f e v e r y 1 9 2 f r a m e s i s r e p l a c e d b y t h e Z p r e a m b l e , w h i c h i d e n t i f i e s t h e s t a r t o f a n e w b l o c k o f c h a n n e l s t a t u s a n d u s e r d a t a .
F i g u r e 6 3 . A E S 3 F r a m e a n d S u b f r a m e E n c o d i n g
O n e b l o c k i s c o m p r i s e d o f 1 9 2 f r a m e s o f d a t a . T h i s f o r m a t t r a n s l a t e s t o 1 9 2 b i t s e a c h f o r c h a n n e l s t a t u s a n d u s e r d a t a f o r e a c h c h a n n e l . T h e 1 9 2 b i t s a r e o r g a n i z e d i n t o 2 4 d a t a b y t e s , w h i c h a r e d e f i n e d b y t h e A E S 3 - 2 0 0 3 a n d c o n s u m e r s t a n d a r d s d o c u m e n t s . T h e A E S 1 8 s t a n d a r d d e f i n e s r e c o m m e n d e d u s a g e a n d f o r m a t t i n g o f t h e
u s e r d a t a b i t s , w h i l e c o n s u m e r a p p l i c a t i o n s m a y u t i l i z e t h e u s e r d a t a f o r o t h e r p u r p o s e s . T h e S R C 4 3 9 2 a l s o i n c l u d e s b l o c k - s i z e d t r a n s m i t t e r a n d r e c e i v e r c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s , w h i c h h a v e 2 4 b y t e s e a c h f o r t h e c h a n n e l s t a t u s a n d u s e r d a t a a s s i g n e d t o a u d i o C h a n n e l s 1 a n d 2 . R e f e r t o t h e C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r M a p s s e c t i o n f o r t h e o r g a n i z a t i o n o f t h e b u f f e r e d c h a n n e l s t a t u s a n d u s e r d a t a f o r t h e r e c e i v e r a n d t r a n s m i t t e r f u n c t i o n s .
T h e a u d i o d a t a f o r C h a n n e l 1 a n d C h a n n e l 2 m a y b e u p t o 2 4 b i t s i n l e n g t h , a n d o c c u p i e s b i t s 4 t h r o u g h 2 7 o f t h e c o r r e s p o n d i n g s u b f r a m e . B i t 4 i s t h e L S B w h i l e b i t 2 7 i s t h e M S B . I f o n l y 2 0 b i t s a r e r e q u i r e d f o r a u d i o d a t a , t h e n b i t s 8 t h r o u g h 2 7 a r e u t i l i z e d f o r a u d i o d a t a , w h i l e b i t s 4 t h o u g h 7 a r e u t i l i z e d f o r a u x i l i a r y d a t a b i t s .
T h e v a l i d i t y ( V ) b i t i n d i c a t e s w h e t h e r o r n o t t h e a u d i o s a m p l e w o r d b e i n g t r a n s m i t t e d i s s u i t a b l e f o r d i g i t a l - t o - a n a l o g ( D / A ) c o n v e r s i o n o r f u r t h e r d i g i t a l p r o c e s s i n g a t t h e r e c e i v e r e n d o f t h e c o n n e c t i o n . I f t h e v a l i d i t y b i t i s 0 , t h e n t h e a u d i o s a m p l e i s s u i t a b l e f o r c o n v e r s i o n o r a d d i t i o n a l p r o c e s s i n g . I f t h e v a l i d i t y b i t i s 1 , t h e n t h e a u d i o s a m p l e i s n o t s u i t a b l e f o r c o n v e r s i o n o r a d d i t i o n a l p r o c e s s i n g .
T h e p a r i t y ( P ) b i t i s s e t t o e i t h e r a 0 o r 1 , s u c h t h a t b i t s 4 t h r o u g h 3 1 c a r r y a n e v e n n u m b e r o f o n e s a n d z e r o s f o r e v e n p a r i t y . T h e D I T b l o c k i n t h e S R C 4 3 9 2 a u t o m a t i c a l l y m a n a g e s t h e p a r i t y b i t , s e t t i n g i t t o a 0 o r 1 a s n e e d e d . T h e D I R b l o c k c h e c k s t h e p a r i t y o f b i t s 4 t h o u g h 3 1 a n d g e n e r a t e s a p a r i t y e r r o r i f o d d p a r i t y i s d e t e c t e d .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 2 7
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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Preceding State: 0 1
Preamble: Channel Coding: Channel Coding: Description:X 111 000 10 000 111 01 Channel Su1 bframe
Y 111 010 00 000 101 11 Channel Su2 bframeZ 111 100 00 000 011 11 Channel 1 Subframe and Block Start
Cl cko
(2x Source Bi atet R )
Source Data
Coding
(NR )Z
AES3 ChannelCoding
(Biphase Mark)
Insert Preamble
Code Below
Preceding State, fr of the previous Frameom the Parity bit .
Preamble Z (Block Start)
Preamble Coding
0
0
1
1
D I G I T A L I N T E R F A C E T R A N S M I T T E R ( D I T ) O P E R A T I O N
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e b i n a r y n o n - r e t u r n t o z e r o ( N R Z ) f o r m a t t e d a u d i o a n d s t a t u s s o u r c e d a t a f o r b i t s 4 t h r o u g h 3 1 o f e a c h s u b f r a m e a r e e n c o d e d u t i l i z i n g a B i p h a s e M a r k f o r m a t f o r t r a n s m i s s i o n . T h i s f o r m a t a l l o w s f o r c l o c k r e c o v e r y a t t h e r e c e i v e r e n d , a s w e l l a s m a k i n g t h e i n t e r f a c e i n s e n s i t i v e t o t h e p o l a r i t y o f t h e b a l a n c e d c a b l e c o n n e c t i o n s . T h e p r e a m b l e s a t t h e s t a r t o f e a c h s u b f r a m e a r e e n c o d e d t o i n t e n t i o n a l l y v i o l a t e t h e B i p h a s e M a r k f o r m a t t i n g , m a k i n g t h e i r d e t e c t i o n b y t h e r e c e i v e r r e l i a b l e , a s w e l l a s a v o i d i n g t h e p o s s i b i l i t y o f a u d i o a n d s t a t u s d a t a i m i t a t i n g t h e p r e a m b l e s . F i g u r e 6 4 s h o w s t h e B i p h a s e M a r k a n d p r e a m b l e e n c o d i n g .
A l t h o u g h t h e A E S 3 s t a n d a r d o r i g i n a l l y d e f i n e d t r a n s m i s s i o n f o r s a m p l i n g r a t e s u p t o 4 8 k H z , t h e i n t e r f a c e i s c a p a b l e o f h a n d l i n g h i g h e r s a m p l i n g r a t e s , g i v e n t h a t a t t e n t i o n i s p a i d t o c a b l e l e n g t h a n d i m p e d a n c e m a t c h i n g . E q u a l i z a t i o n a t t h e r e c e i v e r m a y a l s o b e r e q u i r e d , d e p e n d i n g o n t h e c a b l e a n d m a t c h i n g f a c t o r s . I t i s a l s o p o s s i b l e t o t r a n s m i t a n d d e c o d e m o r e t h a n t w o c h a n n e l s o f a u d i o d a t a u t i l i z i n g t h e A E S 3 o r r e l a t e d c o n s u m e r i n t e r f a c e s . S p e c i a l e n c o d i n g a n d / o r c o m p r e s s i o n a l g o r i t h m s a r e u t i l i z e d t o s u p p o r t m u l t i p l e c h a n n e l s , i n c l u d i n g t h e D o l b y ® A C - 3 , D T S , M P E G - 1 / 2 , a n d o t h e r d a t a r e d u c e d a u d i o f o r m a t s .
F i g u r e 6 4 . B i p h a s e M a r k E n c o d i n g
T h e D I T e n c o d e s a g i v e n t w o - c h a n n e l o r d a t a - r e d u c e d a u d i o i n p u t s t r e a m i n t o a n A E S 3 - e n c o d e d o u t p u t s t r e a m . I n a d d i t i o n t o t h e e n c o d i n g f u n c t i o n , t h e D I T i n c l u d e s d i f f e r e n t i a l l i n e d r i v e r a n d C M O S b u f f e r e d o u t p u t f u n c t i o n s . T h e l i n e d r i v e r i s s u i t a b l e f o r d r i v i n g b a l a n c e d o r u n b a l a n c e d l i n e i n t e r f a c e s , w h i l e t h e C M O S b u f f e r e d o u t p u t i s d e s i g n e d t o d r i v e e x t e r n a l l o g i c o r l i n e d r i v e r s , a s w e l l a s o p t i c a l t r a n s m i t t e r m o d u l e s . F i g u r e 6 5 i l l u s t r a t e s t h e f u n c t i o n a l b l o c k d i a g r a m f o r t h e D I T .
T h e i n p u t o f t h e D I T r e c e i v e s t h e a u d i o d a t a f o r C h a n n e l s 1 a n d 2 f r o m o n e o f f o u r p o s s i b l e s o u r c e s : P o r t A , P o r t B , t h e D I R , o r t h e S R C . B y d e f a u l t , P o r t A i s s e l e c t e d a s t h e s o u r c e . T h e D I T a l s o r e q u i r e s a m a s t e r c l o c k s o u r c e , w h i c h m a y b e p r o v i d e d b y e i t h e r t h e M C L K i n p u t ( p i n 2 5 ) o r R X C K O ( t h e D I R r e c o v e r e d m a s t e r c l o c k o u t p u t ) . A m a s t e r c l o c k d i v i d e r i s u t i l i z e d t o s e l e c t t h e f r a m e r a t e f o r t h e A E S 3 - e n c o d e d o u t p u t d a t a . T h e T X D I V [ 1 : 0 ] b i t s i n c o n t r o l r e g i s t e r 0 x 0 7 a r e u t i l i z e d t o s e l e c t d i v i d e b y 1 2 8 , 2 5 6 , 3 8 4 , o r 5 1 2 o p e r a t i o n .
C h a n n e l s t a t u s a n d u s e r d a t a f o r C h a n n e l s 1 a n d 2 a r e i n p u t t o t h e A E S 3 e n c o d e r v i a t h e c o r r e s p o n d i n g T r a n s m i t t e r A c c e s s ( T A ) d a t a b u f f e r s . T h e T A d a t a b u f f e r s a r e i n t u r n l o a d e d f r o m t h e U s e r A c c e s s ( U A ) b u f f e r s ,
w h i c h a r e p r o g r a m m e d v i a t h e S P I o r I 2 C h o s t i n t e r f a c e , o r l o a d e d f r o m t h e D I R R e c e i v e r A c c e s s ( R A ) d a t a b u f f e r s . T h e s o u r c e o f t h e c h a n n e l s t a t u s a n d u s e r d a t a i s s e l e c t e d u t i l i z i n g t h e T X C U S [ 1 : 0 ] b i t s i n c o n t r o l r e g i s t e r 0 x 0 9 . W h e n t h e D I R i s s e l e c t e d a s t h e i n p u t s o u r c e , t h e c h a n n e l s t a t u s a n d u s e r d a t a o u t p u t f r o m t h e D I T i s d e l a y e d b y o n e b l o c k i n r e l a t i o n t o t h e a u d i o d a t a .
T h e v a l i d i t y ( V ) b i t m a y b e p r o g r a m m e d u s i n g o n e o f t w o s o u r c e s . T h e V A L S E L b i t i n c o n t r o l r e g i s t e r 0 x 0 9 i s u t i l i z e d t o s e l e c t t h e v a l i d i t y d a t a s o u r c e f o r t h e D I T b l o c k . T h e d e f a u l t s o u r c e i s t h e V A L I D b i t i n c o n t r o l r e g i s t e r 0 x 0 7 , w h i c h i s w r i t t e n v i a t h e S P I o r I 2 C h o s t i n t e r f a c e . T h e v a l i d i t y b i t m a y a l s o b e t r a n s f e r r e d f r o m t h e A E S 3 d e c o d e r o u t p u t o f t h e D I R , w h e r e t h e V b i t f o r t h e D I T s u b f r a m e s t r a c k s t h e d e c o d e d D I R v a l u e f r a m e b y f r a m e .
T h e p a r i t y ( P ) b i t w i l l a l w a y s b e g e n e r a t e d b y t h e A E S 3 e n c o d e r i n t e r n a l p a r i t y g e n e r a t o r l o g i c , s u c h t h a t b i t s 4 t h r o u g h 3 1 o f t h e A E S 3 - e n c o d e d s u b f r a m e a r e e v e n p a r i t y .
2 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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MCLK
RXCKO
User Access(UA) Buffers
Transmitter Access(TA) Buffers
Channel
Status
UserData
From Receiver
Access (RA) Buffer
From Receiver
Access (RA) Buffer
To/From SPI or I C2
Host Interface
To/From SPI or I C2
Host Interface
Port A
Port B
DIR
SRC
TXCLK
TXCUS[1:0] TXBTD
TXIS[1:0]
BLS (pin 35)
SYNC (pin 36)
AE 3S
Encoder
AESMUX
LDMUX
AESOFF
TXOFF
From
BypassMultiplexer
Output
TX+ (pin 32)
TX (pin 31)
AESOUT(pin 34)
Master
Clock
Source
Da at
Source
Channel
Status
UserDa at
TXMUTE BL MS
TXDIV[1:0]
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e A E S 3 e n c o d e r o u t p u t i s c o n n e c t e d t o t h e o u t p u t l i n e d r i v e r a n d C M O S b u f f e r s o u r c e m u l t i p l e x e r s . A s s h o w n i n F i g u r e 6 5 , t h e s o u r c e m u l t i p l e x e r s a l l o w t h e l i n e d r i v e r o r b u f f e r t o b e d r i v e n b y t h e A E S 3 - e n c o d e d d a t a f r o m t h e D I T , o r b y t h e b y p a s s m u l t i p l e x e r , w h i c h i s a s s o c i a t e d w i t h t h e o u t p u t s o f t h e f o u r d i f f e r e n t i a l i n p u t l i n e r e c e i v e r s p r e c e d i n g t h e D I R c o r e . T h e b y p a s s m u l t i p l e x e r a l l o w s f o r o n e o f t h e f o u r l i n e r e c e i v e r o u t p u t s t o b e r o u t e d t o t h e l i n e d r i v e r o r b u f f e r o u t p u t , t h e r e b y p r o v i d i n g a b y p a s s m o d e o f o p e r a t i o n . B o t h t h e l i n e d r i v e r a n d C M O S o u t p u t b u f f e r i n c l u d e o u t p u t d i s a b l e s , s e t b y t h e T X O F F a n d A E S O F F b i t s i n c o n t r o l r e g i s t e r 0 x 0 8 . W h e n t h e o u t p u t s a r e d i s a b l e d , t h e y a r e f o r c e d t o a l o w l o g i c s t a t e .
T h e A E S 3 e n c o d e r i n c l u d e s a n o u t p u t m u t e f u n c t i o n t h a t s e t s a l l b i t s f o r b o t h t h e C h a n n e l 1 a n d 2 a u d i o a n d a u x i l i a r y d a t a t o z e r o . T h e p r e a m b l e , V , U , a n d C b i t s a r e u n a f f e c t e d , w h i l e t h e P b i t i s r e c a l c u l a t e d . T h e m u t e f u n c t i o n i s c o n t r o l l e d u s i n g t h e T X M U T E b i t i n c o n t r o l r e g i s t e r 0 x 0 8 .
F i g u r e 6 5 . D i g i t a l I n t e r f a c e T r a n s m i t t e r ( D I T ) F u n c t i o n a l B l o c k D i a g r a m
T h e A E S 3 e n c o d e r i n c l u d e s a b l o c k s t a r t i n p u t / o u t p u t p i n , B L S ( p i n 3 5 ) . T h e B L S p i n m a y b e p r o g r a m m e d a s a n i n p u t o r o u t p u t . T h e i n p u t / o u t p u t s t a t e o f t h e B L S p i n i s p r o g r a m m e d u s i n g t h e B L S M b i t i n c o n t r o l r e g i s t e r 0 x 0 7 . B y d e f a u l t , t h e B L S p i n i s c o n f i g u r e d a s a n i n p u t .
A s a n i n p u t , t h e B L S p i n m a y b e u t i l i z e d t o f o r c e a b l o c k s t a r t c o n d i t i o n , w h e r e b y t h e s t a r t o f a n e w b l o c k o f c h a n n e l s t a t u s a n d u s e r d a t a i s i n i t i a t e d b y g e n e r a t i n g a Z p r e a m b l e f o r t h e n e x t f r a m e o f d a t a . T h e B L S i n p u t m u s t b e s y n c h r o n i z e d w i t h t h e D I T i n t e r n a l S Y N C c l o c k . T h i s c l o c k i s o u t p u t o n S Y N C ( p i n 3 6 ) . T h e S Y N C c l o c k r i s i n g e d g e i s a l i g n e d w i t h t h e s t a r t o f e a c h f r a m e f o r t h e A E S 3 - e n c o d e d d a t a o u t p u t b y t h e D I T . F i g u r e 6 6 i l l u s t r a t e s t h e f o r m a t r e q u i r e d f o r a n e x t e r n a l b l o c k s t a r t s i g n a l , a s w e l l a s i n d i c a t i n g t h e f o r m a t w h e n t h e B L S p i n i s c o n f i g u r e d a s a n o u t p u t . W h e n t h e B L S p i n i s a n o u t p u t , t h e D I T g e n e r a t e s t h e b l o c k s t a r t s i g n a l b a s e d u p o n
t h e i n t e r n a l S Y N C c l o c k . F o r d e t a i l s r e g a r d i n g D I T c o n t r o l a n d s t a t u s r e g i s t e r s , a s w e l l a s c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s , r e f e r t o t h e C o n t r o l R e g i s t e r s a n d C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r M a p s s e c t i o n s .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 2 9
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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SY CN
BLS(input)
BLS
(output)
Block Start
(Frame 0 starts here)
D I G I T A L I N T E R F A C E R E C E I V E R ( D I R ) O P E R A T I O N
PL 1L
AE 3S
Decoder
PulseGenerator
PL 2L128f S256f S512f S
ClockDividerDivide by
1, 2, 4, or 8
Data StreamDe-M xu
RX1+ (pin 1)
RX1 (pin 2)
RX2+ (pin 3)
RX2 (pin 4)
RX3+ (pin 5)
RX3 (pin 6)
RX4+ (pin 7)
RX4 (pin 8)
LOCK (pin 11)
RXCKO(pin 12)
RXCKO
BYPMUX[1 0: ]
R MUX[X 1:0]
RXCLK
MC K L
RXCKI
RXCKOF[1:0]
Ch 1.(Left)
Audio
Ch 2.(Right) Audio
Cha nen lStatus
Channel
Status
UserDa at
User
Da at
User Access(UA) Buffers
Receiver Access(RA) Buffers
ToDIT
To SPI or I C Host Interface2
ReceiverSy cn
GeneratorRCV_SYNC
Error andStatus Outputs
To DIT Bufferand Line Driver
ReferenceClock
Source
ToDIT
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 6 6 . D I T B l o c k S t a r t T i m i n g
T h e D I R p e r f o r m s A E S 3 d e c o d i n g a n d c l o c k r e c o v e r y a n d p r o v i d e s t h e d i f f e r e n t i a l l i n e r e c e i v e r f u n c t i o n s . T h e l o c k r a n g e o f t h e D I R i n c l u d e s f r a m e / s a m p l i n g r a t e s f r o m 2 0 k H z t o 2 1 6 k H z . F i g u r e 6 7 s h o w s t h e f u n c t i o n a l b l o c k d i a g r a m f o r t h e D I R .
F o u r d i f f e r e n t i a l l i n e r e c e i v e r s a r e u t i l i z e d f o r s i g n a l c o n d i t i o n i n g t h e e n c o d e d i n p u t d a t a s t r e a m s . T h e r e c e i v e r s c a n b e e x t e r n a l l y c o n f i g u r e d f o r e i t h e r b a l a n c e d o r u n b a l a n c e d c a b l e i n t e r f a c e s , a s w e l l a s i n t e r f a c i n g w i t h C M O S l o g i c l e v e l i n p u t s f r o m o p t i c a l r e c e i v e r s o r e x t e r n a l l o g i c c i r c u i t r y . S e e F i g u r e 6 8 f o r a s i m p l i f i e d s c h e m a t i c f o r t h e l i n e r e c e i v e r . E x t e r n a l c o n n e c t i o n s a r e d i s c u s s e d i n t h e R e c e i v e r I n p u t I n t e r f a c i n g s e c t i o n .
F i g u r e 6 7 . D i g i t a l I n t e r f a c e R e c e i v e r ( D I R ) F u n c t i o n a l B l o c k D i a g r a m
3 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
8/10/2019 SRC4392 by TI datasheet
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RX+
RX
To Receiver
Input and BypassMultiplexers
24k
VDD33
24k
24k 24k
3k
3k
DGND2
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 6 8 . D i f f e r e n t i a l L i n e R e c e i v e r C i r c u i t
T h e o u t p u t s o f t h e f o u r l i n e r e c e i v e r s a r e c o n n e c t e d t o t w o 1 - o f - 4 d a t a s e l e c t o r s : t h e r e c e i v e r i n p u t m u l t i p l e x e r a n d t h e b y p a s s m u l t i p l e x e r . T h e i n p u t m u l t i p l e x e r s e l e c t s o n e o f t h e f o u r l i n e r e c e i v e r o u t p u t s a s t h e s o u r c e f o r t h e A E S 3 - e n c o d e d d a t a s t r e a m t o b e p r o c e s s e d b y t h e D I R c o r e . T h e b y p a s s m u l t i p l e x e r i s u t i l i z e d t o r o u t e a l i n e r e c e i v e r o u t p u t t o e i t h e r t h e D I T l i n e d r i v e r o r C M O S b u f f e r e d o u t p u t s , t h e r e b y b y p a s s i n g a l l o t h e r i n t e r n a l
c i r c u i t r y . T h e b y p a s s f u n c t i o n i s u s e f u l f o r s i m p l e s i g n a l d i s t r i b u t i o n a n d r o u t i n g a p p l i c a t i o n s .
T h e D I R r e q u i r e s a r e f e r e n c e c l o c k , s u p p l i e d b y a n e x t e r n a l s o u r c e a p p l i e d a t e i t h e r t h e R X C K I ( p i n 1 3 ) o r M C L K ( p i n 2 5 ) c l o c k i n p u t s . P L L 1 m u l t i p l i e s t h e r e f e r e n c e c l o c k t o a h i g h e r r a t e , w h i c h i s u t i l i z e d a s t h e o v e r s a m p l i n g c l o c k f o r t h e A E S 3 d e c o d e r . T h e d e c o d e r s a m p l e s t h e A E S 3 - e n c o d e d i n p u t s t r e a m i n o r d e r t o e x t r a c t a l l o f t h e a u d i o a n d s t a t u s d a t a . T h e d e c o d e d d a t a s t r e a m i s s e n t o n t o a d e - m u l t i p l e x e r , w h e r e a u d i o a n d s t a t u s d a t a a r e s e p a r a t e d f o r f u r t h e r p r o c e s s i n g a n d b u f f e r i n g . T h e p u l s e g e n e r a t o r c i r c u i t r y s a m p l e s t h e e n c o d e d i n p u t d a t a s t r e a m a n d g e n e r a t e s a c l o c k t h a t i s 1 6 t i m e s t h e f r a m e / s a m p l i n g r a t e ( o r f S ) . T h e 1 6 f S c l o c k i s t h e n p r o c e s s e d b y P L L 2 , w h i c h f u r t h e r m u l t i p l i e s t h e c l o c k r a t e a n d p r o v i d e s l o w - p a s s f i l t e r i n g f o r j i t t e r a t t e n u a t i o n . T h e a v a i l a b l e P L L 2 o u t p u t c l o c k r a t e s i n c l u d e 5 1 2 f S , 2 5 6 f S , a n d 1 2 8 f S . T h e m a x i m u m a v a i l a b l e P L L 2 o u t p u t c l o c k r a t e f o r a g i v e n i n p u t s a m p l i n g r a t e i s e s t i m a t e d b y i n t e r n a l l o g i c a n d m a d e a v a i l a b l e f o r r e a d b a c k v i a s t a t u s r e g i s t e r 0 x 1 3 .
T h e o u t p u t o f P L L 2 m a y b e d i v i d e d b y a f a c t o r o f t w o , f o u r , o r e i g h t , o r s i m p l y p a s s e d t h r o u g h t o t h e r e c o v e r e d m a s t e r c l o c k o u t p u t , R X C K O ( p i n 1 2 ) . T h e R X C K O c l o c k i s a l s o b e r o u t e d i n t e r n a l l y t o o t h e r f u n c t i o n b l o c k s , w h e r e i t m a y b e f u r t h e r d i v i d e d t o c r e a t e l e f t / r i g h t w o r d a n d b i t c l o c k s . T h e R X C K O o u t p u t m a y b e d i s a b l e d a n d
f o r c e d t o a h i g h - i m p e d a n c e s t a t e b y m e a n s o f a c o n t r o l r e g i s t e r b i t , a l l o w i n g o t h e r t r i - s t a t e b u f f e r e d c l o c k s t o b e t i e d t o t h e s a m e e x t e r n a l c i r c u i t n o d e , i f n e e d e d . B y d e f a u l t , t h e R X C K O o u t p u t ( p i n 1 2 ) i s d i s a b l e d a n d f o r c e d t o a h i g h - i m p e d a n c e s t a t e .
F i g u r e 6 9 i l l u s t r a t e s t h e f r e q u e n c y r e s p o n s e o f P L L 2 . J i t t e r a t t e n u a t i o n s t a r t s a t a p p r o x i m a t e l y 5 0 k H z . P e a k i n g i s n o m i n a l l y 1 d B , w h i c h i s w i t h i n t h e 2 d B m a x i m u m a l l o w e d b y t h e A E S 3 s t a n d a r d . T h e r e c e i v e r j i t t e r t o l e r a n c e p l o t f o r t h e D I R i s i l l u s t r a t e d i n F i g u r e 7 0 , a l o n g w i t h t h e r e q u i r e d A E S 3 j i t t e r t o l e r a n c e t e m p l a t e . T h e D I R j i t t e r t o l e r a n c e s a t i s f i e s t h e A E S 3 r e q u i r e m e n t s , a s w e l l a s t h e r e q u i r e m e n t s s e t f o r t h b y t h e I E C 6 0 9 5 8 - 3 s p e c i f i c a t i o n . F i g u r e 7 0 w a s c a p t u r e d u s i n g a f u l l - s c a l e 2 4 - b i t , t w o - c h a n n e l , A E S 3 - e n c o d e d i n p u t s t r e a m w i t h a 4 8 k H z f r a m e r a t e .
T h e d e c o d e d a u d i o d a t a , a l o n g w i t h t h e i n t e r n a l l y - g e n e r a t e d s y n c c l o c k s , m a y b e r o u t e d t o o t h e r f u n c t i o n b l o c k s , i n c l u d i n g P o r t A , P o r t B , t h e S R C , a n d / o r t h e D I T . T h e d e c o d e d c h a n n e l s t a t u s a n d u s e r d a t a i s b u f f e r e d i n t h e c o r r e s p o n d i n g R e c e i v e r A c c e s s ( R A ) d a t a b u f f e r s , t h e n t r a n s f e r r e d t o t h e c o r r e s p o n d i n g U s e r A c c e s s ( U A ) d a t a b u f f e r s , w h e r e i t m a y b e r e a d b a c k t h r o u g h e i t h e r t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e . T h e c o n t e n t s o f t h e R A b u f f e r s m a y a l s o b e t r a n s f e r r e d t o t h e D I T U A d a t a b u f f e r s ; s e e F i g u r e 6 5 . T h e c h a n n e l s t a t u s a n d u s e r d a t a b i t s m a y a l s o b e o u t p u t s e r i a l l y t h r o u g h t h e g e n e r a l - p u r p o s e o u t p u t p i n s , G P O [ 4 : 1 ] . F i g u r e 7 1 i l l u s t r a t e s t h e o u t p u t f o r m a t f o r t h e G P O p i n s w h e n u s e d f o r t h i s p u r p o s e , a l o n g w i t h t h e D I R b l o c k s t a r t ( B L S ) a n d f r a m e s y n c h r o n i z a t i o n ( S Y N C ) c l o c k s . T h e r i s i n g e d g e s o f t h e D I R S Y N C c l o c k o u t p u t a r e a l i g n e d w i t h t h e s t a r t o f e a c h f r a m e f o r t h e r e c e i v e d A E S 3 d a t a .
T h e D I R i n c l u d e s a d e d i c a t e d , a c t i v e l o w A E S 3 d e c o d e r a n d P L L 2 l o c k o u t p u t , n a m e d L O C K ( p i n 1 1 ) . T h e l o c k o u t p u t i s a c t i v e o n l y w h e n b o t h t h e A E S 3 d e c o d e r a n d P L L 2 i n d i c a t e a l o c k c o n d i t i o n . A d d i t i o n a l D I R s t a t u s f l a g s m a y b e o u t p u t a t t h e g e n e r a l - p u r p o s e o u t p u t ( G P O ) p i n s , o r a c c e s s e d t h r o u g h t h e s t a t u s r e g i s t e r s v i a t h e S P I o r I 2 C h o s t i n t e r f a c e . R e f e r t o t h e G e n e r a l - P u r p o s e D i g i t a l O u t p u t s a n d C o n t r o l R e g i s t e r s s e c t i o n s f o r a d d i t i o n a l i n f o r m a t i o n r e g a r d i n g t h e D I R s t a t u s f u n c t i o n s .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3 1
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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2
0
2
4
6
8
10
12
14
16
18
20
100
101
102
103
Jitter Frequency (Hz)
104
105
106
JitterAttenuation(dB)
PeakJitter(UI)
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
20 100 1k
Sinusoidal Jitter Frequency (Hz)
10k 100k
+
ato
5
2
1
500m
200m
100m
50m
20m
10m
5m
2m
1m
THD+N
Output Jitter Amplitude
Input Jitter Amplitude
Ch 2.Ch. 1 Ch. 1Ch 2. Ch 2.Ch. 1 Ch. 1Ch 2.
BLS
(output)
SY CN
(output)
C or U da at
(output)
Bit 0 Bit 1 Bit 2 Bit 4
Block Start
(Fr mea 0 St rts Hea re)
A S Y N C H R O N O U S S A M P L E R A T E C O N V E R T E R ( S R C ) O P E R A T I O N
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 6 9 . D I R J i t t e r A t t e n u a t i o n C h a r a c t e r i s t i c s
F i g u r e 7 0 . D I R J i t t e r T o l e r a n c e P l o t
F i g u r e 7 1 . D I R C h a n n e l S t a t u s a n d U s e r D a t a S e r i a l O u t p u t F o r m a t V i a t h e G P O P i n s
T h e a s y n c h r o n o u s S R C p r o v i d e s c o n v e r s i o n f r o m a n a r b i t r a r y i n p u t s a m p l i n g r a t e t o a d e s i r e d o u t p u t s a m p l i n g r a t e . T h e i n p u t a n d o u t p u t s a m p l i n g r a t e s m a y b e e q u a l o r d i f f e r e n t , w i t h i n t h e b o u n d s o f a 1 : 1 6 t o 1 6 : 1
3 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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De-Emph sa isF tei rl
InterpolationF tei rl
DecimationF tei rl
Re-Sampler
Rate
Es matorti
f SIN
f SOUT
R feree nce Clock
P rt Ao
P rt Bo
DIR
Audio Data Output
INT_ YS NC
From Port A, Port B, or DIT
SRCIS[1:0]
DEM[ :1 0]
AUTODEM
IGRP[1:0]
SRI[ :4 0]
SRF[10:0]
R I A OT
RDY (pin 15)
M TE (U pin 14)
DDN
T CR K A
AL[7:0]
AR[7:0]
OWL[ :1 0]
MC K L
R K X IC
R K X OC
SRCCLK[1 0: ]
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
i n p u t - t o - o u t p u t s a m p l i n g r a t i o r a n g e . T h e i n p u t a n d o u t p u t d a t a s o u r c e s m a y b e c o m p l e t e l y a s y n c h r o n o u s t o o n e a n o t h e r ; s y n c h r o n o u s o p e r a t i o n i s a l s o s u p p o r t e d . T h e i n p u t - t o - o u t p u t s a m p l i n g r a t i o i s d e t e r m i n e d a u t o m a t i c a l l y u s i n g i n t e r n a l r a t e e s t i m a t i o n l o g i c , w i t h t h e r e - s a m p l e r b e i n g u p d a t e d i n r e a l t i m e w i t h o u t t h e n e e d f o r p r o g r a m m i n g . T h e S R C s u p p o r t s i n p u t a n d o u t p u t s a m p l i n g r a t e s u p t o 2 1 6 k H z , w i t h a u d i o d a t a w o r d l e n g t h s u p t o 2 4 b i t s . A f u n c t i o n a l b l o c k d i a g r a m f o r t h e S R C i s s h o w n i n F i g u r e 7 2 .
F i g u r e 7 2 . A s y n c h r o n o u s S a m p l e R a t e C o n v e r t e r ( S R C ) F u n c t i o n a l B l o c k D i a g r a m
T h e S R C r e c e i v e s a d i g i t a l a u d i o i n p u t f r o m o n e o f t h r e e d a t a s o u r c e s : P o r t A , P o r t B , o r t h e D I R . B y d e f a u l t , P o r t A i s s e l e c t e d a s t h e i n p u t s o u r c e f o r t h e S R C . T h e o u t p u t o f t h e S R C m a y b e c o n n e c t e d t o P o r t A , P o r t B , a n d / o r t h e D I T .
T h e S R C r e q u i r e s a r e f e r e n c e c l o c k , w h i c h m a y b e s o u r c e d f r o m e i t h e r t h e M C L K ( p i n 2 5 ) o r R X C K I ( p i n 1 3 ) c l o c k i n p u t s , o r f r o m t h e R X C K O r e c o v e r e d m a s t e r c l o c k o u t p u t f r o m t h e D I R b l o c k . T h e r e f e r e n c e c l o c k i s u t i l i z e d b y t h e r a t e e s t i m a t o r t o d e t e r m i n e t h e i n p u t - t o - o u t p u t s a m p l i n g r a t i o . B y d e f a u l t , M C L K i s s e l e c t e d a s t h e r e f e r e n c e c l o c k s o u r c e f o r t h e S R C .
A s p a r t o f t h e S R C r a t e e s t i m a t i o n a n d r e - s a m p l i n g f u n c t i o n s , t w o d i g i t a l s e r v o l o o p s a r e e m p l o y e d , o n e f o r t h e i n p u t s i d e a n d o n e f o r t h e o u t p u t s i d e . T h e s e r v o l o o p s o p e r a t e i n t w o m o d e s : F a s t a n d S l o w . W h e n a c h a n g e i n o n e o r b o t h o f t h e s a m p l i n g r a t e s o c c u r s , t h e s e r v o l o o p ( s ) e n t e r ( s ) F a s t m o d e o p e r a t i o n . W h e n a s e r v o l o o p h a s s e t t l e d i n F a s t m o d e , i t w i l l t h e n s w i t c h t o S l o w m o d e . W h e n b o t h t h e i n p u t a n d o u t p u t s e r v o l o o p s h a v e s w i t c h e d t o S l o w m o d e , t h e R D Y o u t p u t ( p i n 1 5 ) i s f o r c e d l o w , i n d i c a t i n g t h a t t h e S R C h a s c o m p l e t e d t h e r a t e e s t i m a t i o n p r o c e s s .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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0
50
100
150
200
10-1
100
101
102
Frequency (Hz)
103
104
105
Attenuation(dB)
f = 192kHzS
Slow Mode
Fast Mode
0
50
100
150
200
10-2
10-1
100
101
102
Frequency (Hz)
103
104
105
Attenuation(dB)
f = 192kHzS
Slow Mode Fast Mode
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e i n p u t a n d o u t p u t s e r v o - l o o p f r e q u e n c y r e s p o n s e s a r e s h o w n i n F i g u r e 7 3 a n d F i g u r e 7 4 , r e s p e c t i v e l y . T h e f i l t e r r e s p o n s e f o r e a c h s e r v o l o o p r o l l s o f f a t 8 0 d B p e r d e c a d e . T h e s e r v o l o o p c o r n e r f r e q u e n c i e s s c a l e p r o p o r t i o n a l l y w i t h i n p u t o r o u t p u t s a m p l i n g r a t e s . T h e l o w c o r n e r f r e q u e n c y a n d s h a r p r o l l - o f f p r o v i d e e x c e l l e n t j i t t e r a t t e n u a t i o n f o r t h e S R C b l o c k .
F i g u r e 7 3 . I n p u t D i g i t a l S e r v o - L o o p F r e q u e n c y R e s p o n s e
F i g u r e 7 4 . O u t p u t D i g i t a l S e r v o - L o o p F r e q u e n c y R e s p o n s e
T h e S R C i n c l u d e s o u t p u t s o f t m u t i n g a n d d i g i t a l a t t e n u a t i o n f u n c t i o n s , p r o v i d i n g a r t i f a c t - f r e e m u t i n g a n d o u t p u t l e v e l c o n t r o l f o r t h e S R C o u t p u t d a t a . T h e m u t e f u n c t i o n f o r c e s t h e S R C o u t p u t d a t a l o w b y s t e p p i n g t h e o u t p u t a t t e n u a t i o n f r o m t h e c u r r e n t s e t t i n g t o a n a l l - z e r o d a t a o u t p u t s t a t e . T h e m u t e f u n c t i o n m a y b e c o n t r o l l e d b y t h e M U T E i n p u t ( p i n 1 4 ) , o r t h e M U T E b i t i n c o n t r o l r e g i s t e r 0 x 2 D . B o t h t h e p i n a n d c o n t r o l b i t a r e a c t i v e h i g h , w i t h t h e s i g n a l s b e i n g c o m b i n e d b y a l o g i c O R f u n c t i o n i n t e r n a l l y t o g e n e r a t e t h e S R C o u t p u t m u t e c o n t r o l s i g n a l . T h e M U T E c o n t r o l b i t i n c o n t r o l r e g i s t e r 0 x 2 D i s d i s a b l e d b y d e f a u l t .
T h e d i g i t a l a t t e n u a t i o n i s p r o g r a m m a b l e o v e r a 0 d B t o – 1 2 7 . 5 d B r a n g e i n 0 . 5 d B s t e p s , a n d m a y b e c o n t r o l l e d i n d e p e n d e n t l y f o r t h e L e f t a n d R i g h t c h a n n e l s . T h e a t t e n u a t i o n l e v e l i s s e t u s i n g c o n t r o l r e g i s t e r s ; b y d e f a u l t , t h e l e v e l i s 0 d B . A t r a c k i n g f u n c t i o n i s a v a i l a b l e , a l l o w i n g t h e L e f t a n d R i g h t c h a n n e l a t t e n u a t i o n d a t a t o b e s e t t o t h e s a m e v a l u e b y s i m p l y p r o g r a m m i n g t h e L e f t c h a n n e l a t t e n u a t i o n r e g i s t e r . T h e t r a c k i n g m o d e i s e n a b l e d o r d i s a b l e d u s i n g a c o n t r o l r e g i s t e r b i t . T h e t r a c k i n g f u n c t i o n i s d i s a b l e d b y d e f a u l t .
T h e S R C i n c l u d e s d i g i t a l d e - e m p h a s i s f i l t e r i n g f o r t h e a u d i o i n p u t d a t a . T h e d e - e m p h a s i s f i l t e r p r o v i d e s n o r m a l i z a t i o n f o r 5 0 / 1 5 μ s p r e - e m p h a s i z e d a u d i o d a t a . T h e d e - e m p h a s i s f i l t e r s u p p o r t s 3 2 k H z , 4 4 . 1 k H z , a n d 4 8 k H z i n p u t s a m p l i n g r a t e s . T h e f i l t e r i s c o n t r o l l e d b y t h e D E M 0 , D E M 1 , a n d A U T O D E M b i t s i n c o n t r o l r e g i s t e r 0 x 2 E . T h e D E M 0 a n d D E M 1 b i t s a l l o w t h e u s e r t o m a n u a l l y c o n f i g u r e t h e d e - e m p h a s i s f i l t e r o p e r a t i o n . B y d e f a u l t , t h e d e - e m p h a s i s f i l t e r i n g i s d i s a b l e d . T h e A U T O D E M b i t , w h e n e n a b l e d , o v e r r i d e s t h e s e t t i n g o f t h e
3 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
D E M 0 a n d D E M 1 b i t s . T h e A U T O D E M f u n c t i o n a u t o m a t i c a l l y e n a b l e s a n d d i s a b l e s t h e d e - e m p h a s i s f i l t e r f o r t h e r e q u i r e d s a m p l i n g r a t e b a s e d u p o n t h e s e t t i n g o f t h e p r e - e m p h a s i s a n d s a m p l i n g f r e q u e n c y c h a n n e l s t a t u s b i t s i n t h e A E S 3 o r S / P D I F i n p u t d a t a s t r e a m , w h i c h a r e d e c o d e d b y t h e D I R b l o c k . T h e A U T O D E M f e a t u r e f u n c t i o n s o n l y w h e n b o t h 5 0 / 1 5 μ s p r e - e m p h a s i s a n d o n e o f t h e t h r e e s u p p o r t e d s a m p l i n g r a t e s ( 3 2 k H z , 4 4 . 1 k H z , o r 4 8 k H z ) a r e d e c o d e d b y t h e D I R . B y d e f a u l t , t h e d e - e m p h a s i s f i l t e r , i n c l u d i n g t h e A U T O D E M f u n c t i o n , i s d i s a b l e d .
T h e g r o u p d e l a y o f t h e S R C i n t e r p o l a t i o n f u n c t i o n c a n b e p r o g r a m m e d t o o n e o f f o u r s e t t i n g s . T h e a c t u a l l e n g t h
o f t h e i n t e r p o l a t i o n f i l t e r i s u n a l t e r e d , b u t t h e n u m b e r o f s a m p l e s p r e - b u f f e r e d i n t h e F I F O p r i o r t o t h e r e - s a m p l e r f u n c t i o n c a n b e s e t t o 6 4 , 3 2 , 1 6 , o r 8 . T h e F I F O l e n g t h d i r e c t l y i m p a c t s t h e l a t e n c y a n d g r o u p d e l a y . B y d e f a u l t , t h e n u m b e r o f s a m p l e s p r e - b u f f e r e d i s s e t t o 6 4 .
T h e d e c i m a t i o n f i l t e r i n c l u d e s a d i r e c t d o w n - s a m p l i n g o p t i o n . T h i s o p t i o n s h o u l d o n l y b e u s e d i n c a s e s w h e r e t h e o u t p u t s a m p l i n g r a t e i s h i g h e r t h a n t h e i n p u t s a m p l i n g r a t e . T h e a d v a n t a g e o f u s i n g t h e d i r e c t d o w n - s a m p l i n g o p t i o n i s t h a t i t r e s u l t s i n z e r o l a t e n c y o p e r a t i o n , a s i t s i m p l y s e l e c t s o n e o u t o f e v e r y 1 6 s a m p l e s f r o m t h e r e - s a m p l e r o u t p u t w i t h o u t a p p l y i n g l o w - p a s s a n t i - a l i a s i n g f i l t e r i n g . B y c o n t r a s t , t h e d e c i m a t i o n f i l t e r r e s p o n s e a d d s 3 6 . 4 6 8 7 5 s a m p l e s o f g r o u p d e l a y . T h e d i s a d v a n t a g e o f t h e d i r e c t d o w n - s a m p l i n g o p t i o n i s t h a t i t c a n n o t b e u s e d i n c a s e s w h e r e t h e o u t p u t s a m p l i n g r a t e i s e q u a l t o o r l o w e r t h a n t h e i n p u t s a m p l i n g r a t e , s i n c e t h e l a c k o f l o w - p a s s f i l t e r i n g r e s u l t s i n a l i a s i n g . B y d e f a u l t , t h e d e c i m a t i o n f i l t e r i s e n a b l e d , a s t h e i n i t i a l v a l u e s o f t h e i n p u t a n d o u t p u t s a m p l i n g r a t e s m a y b e u n k n o w n .
T h e S R C i n c l u d e s t w o s t a t u s r e g i s t e r s t h a t c o n t a i n t h e i n t e g e r a n d f r a c t i o n a l p a r t s o f t h e i n p u t - t o - o u t p u t s a m p l i n g r a t i o , w h i c h i s d e r i v e d b y t h e S R C r a t e e s t i m a t o r c i r c u i t r y . T h e s e r e g i s t e r s c a n b e r e a d b a c k a n y t i m e t h e R D Y
o u t p u t i s l o w . W h e n e i t h e r t h e i n p u t o r o u t p u t s a m p l i n g r a t e i s k n o w n , t h e u n k n o w n s a m p l i n g r a t e c a n b e c a l c u l a t e d u s i n g t h e c o n t e n t s o f t h e s e s t a t u s r e g i s t e r s .
T h e S R C p r o v i d e s a s i m p l e w o r d l e n g t h r e d u c t i o n m e c h a n i s m f o r r e d u c i n g 2 4 - b i t a u d i o d a t a t o 2 0 - , 1 8 - , o r 1 6 - b i t o u t p u t w o r d l e n g t h s . W o r d l e n g t h r e d u c t i o n i s p e r f o r m e d u t i l i z i n g t r i a n g u l a r p r o b a b i l i t y d e n s i t y f u n c t i o n ( o r T P D F ) d i t h e r . T h e O W L 0 a n d O W L 1 b i t s i n c o n t r o l r e g i s t e r 0 x 2 F a r e u t i l i z e d t o s e t t h e S R C o u t p u t w o r d l e n g t h .
O n e n o t e c o n c e r n i n g t h e S R C o u t p u t w o r d l e n g t h s e t t i n g : w h e n u s i n g t h e S R C o u t p u t a s t h e d a t a s o u r c e f o r e i t h e r t h e P o r t A o r P o r t B s e r i a l d a t a o u t p u t s , a n d t h e a u d i o s e r i a l p o r t d a t a f o r m a t i s s e t t o R i g h t - J u s t i f i e d , t h e w o r d l e n g t h s e t f o r t h e a u d i o s e r i a l p o r t f o r m a t m u s t m a t c h t h e w o r d l e n g t h s e t f o r t h e S R C o u t p u t d a t a .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3 5
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G E N E R A L - P U R P O S E D I G I T A L O U T P U T S
H O S T I N T E R F A C E O P E R A T I O N :
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e S R C 4 3 9 2 i n c l u d e s f o u r g e n e r a l - p u r p o s e d i g i t a l o u t p u t s , G P O 1 t h r o u g h G P O 4 ( p i n s 2 6 t h r o u g h 2 9 , r e s p e c t i v e l y ) . A G P O p i n m a y b e p r o g r a m m e d t o a s t a t i c h i g h o r l o w s t a t e . A l t e r n a t i v e l y , a G P O p i n m a y b e c o n n e c t e d t o o n e o f 1 4 i n t e r n a l l o g i c n o d e s , a l l o w i n g t h e G P O p i n t o i n h e r i t t h e f u n c t i o n o f t h e s e l e c t e d s i g n a l . C o n t r o l r e g i s t e r s 0 x 1 B t h r o u g h 0 x 1 E a r e u t i l i z e d t o s e l e c t t h e f u n c t i o n o f t h e G P O p i n s . F o r d e t a i l s r e g a r d i n g G P O o u t p u t c o n f i g u r a t i o n , r e f e r t o t h e C o n t r o l R e g i s t e r s s e c t i o n . T a b l e 1 s u m m a r i z e s t h e a v a i l a b l e o u t p u t
o p t i o n s f o r t h e G P O p i n s .
T a b l e 1 . G e n e r a l - P u r p o s e O u t p u t P i n C o n f i g u r a t i o n s
G P O n 3 G P O n 2 G P O n 1 G P O n 0 G P O n F U N C T I O N
0 0 0 0 G P O n i s f o r c e d L o w ( d e f a u l t ) .
0 0 0 1 G P O n i s f o r c e d H i g h .
0 0 1 0 S R C I n t e r r u p t F l a g ; A c t i v e L o w
0 0 1 1 D I T I n t e r r u p t F l a g ; A c t i v e L o w
0 1 0 0 D I R I n t e r r u p t F l a g ; A c t i v e L o w
0 1 0 1 D I R 5 0 / 1 5 μ s E m p h a s i s F l a g ; A c t i v e L o w
0 1 1 0 D I R N o n - A u d i o D a t a F l a g ; A c t i v e H i g h
0 1 1 1 D I R N o n - V a l i d D a t a F l a g ; A c t i v e H i g h
1 0 0 0 D I R C h a n n e l S t a t u s D a t a S e r i a l O u t p u t
1 0 0 1 D I R U s e r D a t a S e r i a l O u t p u t
1 0 1 0 D I R B l o c k S t a r t C l o c k O u t p u t
D I R C O P Y B i t O u t p u t 1 0 1 1
( 0 = C o p y r i g h t A s s e r t e d , 1 = C o p y r i g h t N o t A s s e r t e d )
D I R L ( o r O r i g i n a t i o n ) B i t O u t p u t 1 1 0 0
( 0 = 1 s t G e n e r a t i o n o r H i g h e r , 1 = O r i g i n a l )
1 1 0 1 D I R P a r i t y E r r o r F l a g ; A c t i v e H i g h
D I R I n t e r n a l S y n c C l o c k O u t p u t ; m a y b e u s e d a s t h e d a t a c l o c k f o r t h e C h a n n e l 1 1 1 0
S t a t u s a n d U s e r D a t a s e r i a l o u t p u t s .
1 1 1 1 D I T I n t e r n a l S y n c C l o c k
S E R I A L P E R I P H E R A L I N T E R F A C E ( S P I ) M O D E
T h e S R C 4 3 9 2 s u p p o r t s a 4 - w i r e S P I p o r t w h e n t h e C P M i n p u t ( p i n 1 8 ) i s f o r c e d l o w o r t i e d t o g r o u n d . T h e S P I p o r t s u p p o r t s h i g h - s p e e d s e r i a l d a t a t r a n s f e r s u p t o 4 0 M b p s . R e g i s t e r a n d d a t a b u f f e r w r i t e a n d r e a d o p e r a t i o n s a r e s u p p o r t e d .
T h e C S i n p u t ( p i n 1 9 ) s e r v e s a s t h e a c t i v e l o w c h i p s e l e c t f o r t h e S P I p o r t . T h e C S i n p u t m u s t b e f o r c e d l o w i n o r d e r t o w r i t e o r r e a d r e g i s t e r s a n d d a t a b u f f e r s . W h e n C S i s f o r c e d h i g h , t h e d a t a a t t h e C D I N i n p u t ( p i n 2 1 ) i s i g n o r e d , a n d t h e C D O U T o u t p u t ( p i n 2 2 ) i s f o r c e d t o a h i g h - i m p e d a n c e s t a t e . T h e C D I N i n p u t s e r v e s a s t h e s e r i a l d a t a i n p u t f o r t h e p o r t ; t h e C D O U T o u t p u t s e r v e s a s t h e s e r i a l d a t a o u t p u t .
T h e C C L K i n p u t ( p i n 2 0 ) s e r v e s a s t h e s e r i a l d a t a c l o c k f o r b o t h t h e i n p u t a n d o u t p u t d a t a . D a t a i s l a t c h e d a t t h e C D I N i n p u t o n t h e r i s i n g e d g e o f C C L K , w h i l e d a t a i s c l o c k e d o u t o f t h e C D O U T o u t p u t o n t h e f a l l i n g e d g e o f C C L K .
F i g u r e 7 5 i l l u s t r a t e s t h e S P I p o r t p r o t o c o l . B y t e 0 i s r e f e r r e d t o a s t h e c o m m a n d b y t e , w h e r e t h e m o s t s i g n i f i c a n t b i t ( o r M S B ) i s t h e r e a d / w r i t e b i t . F o r t h e R / W b i t , a ' 0 ' i n d i c a t e s a w r i t e o p e r a t i o n , w h i l e a ' 1 ' i n d i c a t e s a r e a d o p e r a t i o n . T h e r e m a i n i n g s e v e n b i t s o f t h e c o m m a n d b y t e a r e u t i l i z e d f o r t h e r e g i s t e r a d d r e s s t a r g e t e d b y t h e w r i t e o r r e a d o p e r a t i o n . B y t e 1 i s a d o n ’ t c a r e b y t e , a n d m a y b e s e t t o a l l z e r o e s . T h i s b y t e i s i n c l u d e d i n o r d e r t o r e t a i n p r o t o c o l c o m p a t i b i l i t y w i t h e a r l i e r T e x a s I n s t r u m e n t s d i g i t a l a u d i o i n t e r f a c e a n d s a m p l e r a t e c o n v e r t e r p r o d u c t s , i n c l u d i n g t h e D I T 4 0 9 6 , D I T 4 1 9 2 , t h e S R C 4 1 8 x s e r i e s d e v i c e s , a n d t h e S R C 4 1 9 x s e r i e s d e v i c e s .
T h e S P I p o r t s u p p o r t s w r i t e a n d r e a d o p e r a t i o n s f o r m u l t i p l e s e q u e n t i a l r e g i s t e r a d d r e s s e s t h r o u g h t h e i m p l e m e n t a t i o n o f a n a u t o - i n c r e m e n t m o d e . A s s h o w n i n F i g u r e 7 5 , t h e a u t o - i n c r e m e n t m o d e i s i n v o k e d b y s i m p l y h o l d i n g t h e C S i n p u t l o w f o r m u l t i p l e d a t a b y t e s . T h e r e g i s t e r a d d r e s s i s a u t o m a t i c a l l y i n c r e m e n t e d a f t e r e a c h d a t a b y t e t r a n s f e r r e d , s t a r t i n g w i t h t h e a d d r e s s s p e c i f i e d b y t h e c o m m a n d b y t e .
3 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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CDOUT Hi Z Hi Z Data for A[ : ]+16 0Data for A[6:0] Data for A[ : ]+N2 0
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H O S T I N T E R F A C E O P E R A T I O N : P H I L I P S I 2 C M O D E
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e f e r t o t h e E l e c t r i c a l C h a r a c t e r i s t i c s : S P I I n t e r f a c e t a b l e a n d F i g u r e 2 f o r s p e c i f i c a t i o n s a n d a t i m i n g d i a g r a m t h a t h i g h l i g h t t h e k e y p a r a m e t e r s f o r S P I i n t e r f a c e o p e r a t i o n .
F i g u r e 7 5 . S e r i a l P e r i p h e r a l I n t e r f a c e ( S P I ) P r o t o c o l f o r t h e S R C 4 3 9 2
T h e S R C 4 3 9 2 s u p p o r t s a 2 - w i r e P h i l i p s I 2 C b u s i n t e r f a c e w h e n C P M ( p i n 1 8 ) i s f o r c e d h i g h o r p u l l e d u p t o t h e V I O s u p p l y r a i l . T h e S R C 4 3 9 2 f u n c t i o n s a s a S l a v e - o n l y d e v i c e o n t h e b u s . S t a n d a r d a n d F a s t m o d e s o f o p e r a t i o n a r e s u p p o r t e d . S t a n d a r d m o d e s u p p o r t s d a t a r a t e s u p t o 1 0 0 k b p s , w h i l e F a s t m o d e s u p p o r t s d a t a r a t e s u p t o 4 0 0 k b p s . F a s t m o d e i s d o w n w a r d c o m p a t i b l e w i t h S t a n d a r d m o d e , a n d t h e s e m o d e s a r e s o m e t i m e s r e f e r r e d t o a s F a s t / S t a n d a r d , o r F / S m o d e . T h e I 2 C B u s S p e c i f i c a t i o n ( V e r s i o n 2 . 1 , J a n u a r y 2 0 0 0 ) , a v a i l a b l e f r o m P h i l i p s S e m i c o n d u c t o r , p r o v i d e s t h e d e t a i l s f o r t h e b u s p r o t o c o l a n d i m p l e m e n t a t i o n . I t i s a s s u m e d t h a t t h e r e a d e r i s f a m i l i a r w i t h t h i s s p e c i f i c a t i o n . R e f e r t o t h e E l e c t r i c a l C h a r a c t e r i s t i c s : I 2 C S t a n d a r d a n d F a s t M o d e s t a b l e a n d F i g u r e 3 f o r s p e c i f i c a t i o n s a n d a t i m i n g d i a g r a m t h a t h i g h l i g h t t h e k e y p a r a m e t e r s f o r I 2 C i n t e r f a c e
o p e r a t i o n .
W h e n t h e I 2 C m o d e i s i n v o k e d , p i n 2 0 b e c o m e s S C L ( w h i c h s e r v e s a s t h e b u s c l o c k ) a n d p i n 2 2 b e c o m e s S D A ( w h i c h c a r r i e s t h e b i - d i r e c t i o n a l s e r i a l d a t a f o r t h e b u s ) . P i n s 1 9 a n d 2 1 b e c o m e A 0 a n d A 1 , r e s p e c t i v e l y , a n d f u n c t i o n a s t h e h a r d w a r e c o n f i g u r a b l e p o r t i o n o f t h e 7 - b i t s l a v e a d d r e s s .
T h e S R C 4 3 9 2 u t i l i z e s a 7 - b i t S l a v e a d d r e s s , s e e F i g u r e 7 6 ( a ) . B i t s A 2 t h r o u g h A 6 a r e f i x e d a n d b i t s A 0 a n d A 1 a r e h a r d w a r e p r o g r a m m a b l e u s i n g p i n s 1 9 a n d 2 1 , r e s p e c t i v e l y . T h e p r o g r a m m a b l e b i t s a l l o w f o r u p t o f o u r S R C 4 3 9 2 d e v i c e s t o b e c o n n e c t e d t o t h e s a m e b u s . T h e s l a v e a d d r e s s i s f o l l o w e d b y t h e R e g i s t e r A d d r e s s B y t e , w h i c h p o i n t s t o a s p e c i f i c r e g i s t e r o r d a t a b u f f e r l o c a t i o n i n t h e S R C 4 3 9 2 r e g i s t e r m a p . T h e r e g i s t e r a d d r e s s b y t e i s c o m p r i s e d o f s e v e n b i t s f o r t h e a d d r e s s , a n d o n e b i t f o r e n a b l i n g o r d i s a b l i n g a u t o - i n c r e m e n t o p e r a t i o n , s e e F i g u r e 7 6 ( b ) . A u t o - i n c r e m e n t m o d e a l l o w s m u l t i p l e s e q u e n t i a l r e g i s t e r l o c a t i o n s t o b e w r i t t e n t o o r r e a d b a c k i n a s i n g l e o p e r a t i o n , a n d i s e s p e c i a l l y u s e f u l f o r b l o c k w r i t e a n d r e a d o p e r a t i o n s .
F i g u r e 7 7 i l l u s t r a t e s t h e p r o t o c o l f o r S t a n d a r d a n d F a s t m o d e W r i t e o p e r a t i o n s . W h e n w r i t i n g a s i n g l e r e g i s t e r
a d d r e s s , o r m u l t i p l e n o n - s e q u e n t i a l r e g i s t e r a d d r e s s e s , t h e s i n g l e r e g i s t e r w r i t e o p e r a t i o n o f F i g u r e 7 7 ( a ) m a y b e u s e d o n e o r m o r e t i m e s . W h e n w r i t i n g m u l t i p l e s e q u e n t i a l r e g i s t e r a d d r e s s e s , t h e a u t o - i n c r e m e n t m o d e o f F i g u r e 7 7 ( b ) i m p r o v e s e f f i c i e n c y . T h e r e g i s t e r a d d r e s s i s a u t o m a t i c a l l y i n c r e m e n t e d b y o n e f o r e a c h s u c c e s s i v e b y t e o f d a t a t r a n s f e r r e d .
F i g u r e 7 8 i l l u s t r a t e s t h e p r o t o c o l f o r S t a n d a r d a n d F a s t m o d e R e a d o p e r a t i o n s . T h e c u r r e n t a d d r e s s r e a d o p e r a t i o n o f F i g u r e 7 8 ( a ) a s s u m e s t h e v a l u e o f t h e r e g i s t e r a d d r e s s f r o m t h e p r e v i o u s l y e x e c u t e d w r i t e o r r e a d o p e r a t i o n , a n d i s u s e f u l f o r p o l l i n g a r e g i s t e r a d d r e s s f o r s t a t u s c h a n g e s . F i g u r e 7 8 ( b ) a n d F i g u r e 7 8 ( c ) i l l u s t r a t e r e a d o p e r a t i o n s f o r o n e o r m o r e r a n d o m r e g i s t e r a d d r e s s e s , w i t h o r w i t h o u t a u t o - i n c r e m e n t m o d e e n a b l e d .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3 7
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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A6 A5 A4 A3 A2 A1 A0
1 1 1 0 0 A1 A0 R/W
Se yt b Pin 91
Se yt b Pin 12
MSB LSB
Fir ts Byte After o itthe RSTA T/RESTART C ond i n
Slave Address
A6 A5 A4 A3 A2 A1 A0INC
MSB LSB
(a) SRC439 lave2 S Address
(b) Regist r Addree ss Byte
Auto-In ecrem nt
0 = Disabled1 = Enabled
S A A A P
S A A A A A P
Byte 1
Slave Address
with R/W = 0
Byte 2
Register Address Byte
with INC = 0
Byte 3
Reg sti er
Da at
Byte 1
Slave Address
with R/W = 0
Byte 2
Register Address Byte
with INC = 1Byte 3
Register Data
Byte 4
Register Data
Fo Addr ress + 1
Byte N
Register Data
For Address + N
(a) Writing a Single Register
(b) rW iting u lt isters Using uto-Incr m nt OperationM ip A ele Se uential R gq e e
S = STAR oT n iCo dti n A = Acknowl d ee gP = STOP Condi i nt o
Transfer from steMa r to Slave
Transfer from Slave to Master
Legend
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 7 6 . S R C 4 3 9 2 S l a v e A d d r e s s a n d R e g i s t e r A d d r e s s B y t e D e f i n i t i o n s
F i g u r e 7 7 . F a s t / S t a n d a r d M o d e W r i t e O p e r a t i o n s
3 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S A A A A A P
Byte 1
Slav Ade dress
wit Rh /W = 0
Byte 2
Reg tis er Address Byte
wit Ih NC = 1
Byte 3
Slave Address
with R/W = 1
Byte 4
Reg tis er Data
Byte N
Reg tis er Data
For Address + N
(c) Random Read Op ment Enablederation, Auto-Incre
S = START C dion tion A = Ackn w dgo le e A = Not Ackno ledgewR = Repeated TARTSP = STOP Condi i nt o
Transfer from steMa r to Slave
Transfer from ave toSl Master
L gende
R
S A A P
Byte 1Slave Addre ss
with R/W = 1
Byte 2Reg tis er Address Byte
with INC = 0
(a Cu) rrent Ad res he Register ddr ss f the vio sd A e Pre us Read, Assumes t o
S A A A P
Byte 1
Slav Ade dresswith R/W = 0
Byte 2
Reg tis er Address Bytewith INC = 0
Byte 3
Slav Ade dresswith R/W = 1
(b) Random Read Op me t Disablederation, Auto-Incre n
R A
Byte 4
Register Data
I N T E R R U P T O U T P U T
VIO
10k
To the outputs forINT
additional SRC4392 devices
Interrupt
Logic
SRC4392 MCU, DSP,or Logic
INT 23 Interrupt
Input
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 7 8 . F a s t / S t a n d a r d M o d e R e a d O p e r a t i o n s
T h e S R C 4 3 9 2 i n c l u d e s m u l t i p l e i n t e r n a l s t a t u s b i t s , m a n y o f w h i c h m a y b e s e t t o t r i g g e r a n i n t e r r u p t s i g n a l . T h e i n t e r r u p t s i g n a l i s o u t p u t a t I N T ( p i n 2 3 ) , w h i c h i s a n a c t i v e l o w , o p e n - d r a i n o u t p u t . T h e I N T p i n r e q u i r e s a p u l l - u p r e s i s t o r t o t h e V I O s u p p l y r a i l . T h e v a l u e o f t h e p u l l - u p i s n o t c r i t i c a l , b u t a 1 0 k Ω d e v i c e s h o u l d b e s u f f i c i e n t f o r m o s t a p p l i c a t i o n s . F i g u r e 7 9 s h o w s t h e i n t e r r u p t o u t p u t p i n c o n n e c t i o n . T h e o p e n - d r a i n o u t p u t a l l o w s i n t e r r u p t p i n s f r o m m u l t i p l e S R C 4 3 9 2 d e v i c e s t o b e c o n n e c t e d i n a w i r e d O R c o n f i g u r a t i o n .
F i g u r e 7 9 . I n t e r r u p t O u t p u t P i n C o n n e c t i o n s
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 3 9
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A P P L I C A T I O N S I N F O R M A T I O N
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T y p i c a l a p p l i c a t i o n d i a g r a m s a n d p o w e r - s u p p l y c o n n e c t i o n s a r e p r e s e n t e d i n t h i s s e c t i o n t o a i d t h e c u s t o m e r i n h a r d w a r e d e s i g n s e m p l o y i n g t h e S R C 4 3 9 2 d e v i c e .
F i g u r e 8 0 i l l u s t r a t e s t y p i c a l a p p l i c a t i o n c o n n e c t i o n s f o r t h e S R C 4 3 9 2 u s i n g a n S P I h o s t i n t e r f a c e . T h e S P I h o s t w i l l t y p i c a l l y b e a m i c r o c o n t r o l l e r , d i g i t a l s i g n a l p r o c e s s o r , o r a p r o g r a m m a b l e l o g i c d e v i c e . I n a d d i t i o n t o
p r o v i d i n g t h e S P I b u s m a s t e r , t h e h o s t m a y b e u t i l i z e d t o p r o c e s s i n t e r r u p t a n d f l a g o u t p u t s f r o m t h e S R C 4 3 9 2 . T h e a u d i o s e r i a l p o r t s a r e c o n n e c t e d t o e x t e r n a l d i g i t a l a u d i o d e v i c e s , w h i c h m a y i n c l u d e d a t a c o n v e r t e r s , d i g i t a l s i g n a l p r o c e s s o r s , d i g i t a l a u d i o i n t e r f a c e r e c e i v e r s / t r a n s m i t t e r s , o r o t h e r l o g i c d e v i c e s . T h e D I R i n p u t s a n d D I T o u t p u t s a r e c o n n e c t e d t o l i n e , o p t i c a l , o r l o g i c i n t e r f a c e s ( s e e t h e R e c e i v e r I n p u t I n t e r f a c i n g a n d T r a n s m i t t e r O u t p u t I n t e r f a c i n g s e c t i o n s ) . M a s t e r a n d D I R r e f e r e n c e c l o c k s o u r c e s a r e a l s o s h o w n .
F i g u r e 8 1 i l l u s t r a t e s t y p i c a l a p p l i c a t i o n c o n n e c t i o n s f o r t h e S R C 4 3 9 2 u s i n g a n I 2 C b u s i n t e r f a c e . T h e I 2 C b u s m a s t e r w i l l t y p i c a l l y b e a m i c r o c o n t r o l l e r , d i g i t a l s i g n a l p r o c e s s o r , o r a p r o g r a m m a b l e l o g i c d e v i c e . I n a d d i t i o n t o p r o v i d i n g t h e I 2 C b u s m a s t e r , t h e h o s t m a y b e u s e d t o p r o c e s s i n t e r r u p t a n d f l a g o u t p u t s f r o m t h e S R C 4 3 9 2 . P u l l - u p r e s i s t o r s a r e c o n n e c t e d f r o m S C L ( p i n 2 0 ) a n d S D A ( p i n 2 2 ) t o t h e V I O s u p p l y r a i l . T h e s e p u l l - u p r e s i s t o r s a r e r e q u i r e d f o r t h e o p e n d r a i n o u t p u t s o f t h e I 2 C i n t e r f a c e . A l l o t h e r c o n n e c t i o n s t o t h e S R C 4 3 9 2 a r e t h e s a m e a s t h e S P I h o s t c a s e d i s c u s s e d p r e v i o u s l y .
F i g u r e 8 2 i l l u s t r a t e s t h e r e c o m m e n d e d p o w e r - s u p p l y c o n n e c t i o n s a n d b y p a s s i n g f o r t h e S R C 4 3 9 2 . I n t h i s c a s e , i t i s a s s u m e d t h a t t h e V I O , V D D 3 3 , a n d V C C s u p p l i e s a r e p o w e r e d f r o m t h e s a m e + 3 . 3 V p o w e r s o u r c e . T h e V D D 1 8 c o r e s u p p l y i s p o w e r e d f r o m a s e p a r a t e s u p p l y , o r d e r i v e d f r o m t h e + 3 . 3 V s u p p l y u s i n g a l i n e a r v o l t a g e r e g u l a t o r , a s i l l u s t r a t e d w i t h t h e o p t i o n a l r e g u l a t o r c i r c u i t r y o f F i g u r e 8 2 .
T h e 0 . 1 μ F b y p a s s c a p a c i t o r s a r e s u r f a c e - m o u n t X 7 R c e r a m i c , a n d s h o u l d b e l o c a t e d a s c l o s e t o t h e d e v i c e a s p o s s i b l e . T h e s e c a p a c i t o r s s h o u l d b e c o n n e c t e d d i r e c t l y b e t w e e n t h e s u p p l y a n d c o r r e s p o n d i n g g r o u n d p i n s o f t h e S R C 4 3 9 2 . T h e g r o u n d p i n i s t h e n c o n n e c t e d d i r e c t l y t o t h e g r o u n d p l a n e o f t h e p r i n t e d c i r c u i t b o a r d ( P C B ) . T h e l a r g e r v a l u e c a p a c i t o r s , s h o w n c o n n e c t e d i n p a r a l l e l t o t h e 0 . 1 μ F c a p a c i t o r s , a r e r e c o m m e n d e d . A t a m i n i m u m , t h e r e s h o u l d a t l e a s t b e f o o t p r i n t s o n t h e P C B f o r i n s t a l l a t i o n o f t h e s e l a r g e r c a p a c i t o r s , s o t h a t e x p e r i m e n t s c a n b e r u n w i t h a n d w i t h o u t t h e c a p a c i t o r s i n s t a l l e d , i n o r d e r t o d e t e r m i n e t h e e f f e c t o n t h e m e a s u r e d p e r f o r m a n c e o f t h e S R C 4 3 9 2 . T h e l a r g e r v a l u e c a p a c i t o r s c a n b e s u r f a c e - m o u n t X 7 R m u l t i l a y e r c e r a m i c o r t a n t a l u m c h i p .
T h e s u b s t r a t e g r o u n d , B G N D ( p i n 4 4 ) , s h o u l d b e c o n n e c t e d b y a P C B t r a c e t o A G N D ( p i n 1 0 ) . T h e A G N D p i n i s t h e n c o n n e c t e d d i r e c t l y t o t h e g r o u n d p l a n e . T h i s c o n n e c t i o n h e l p s t o r e d u c e n o i s e i n t h e D I R s e c t i o n o f t h e d e v i c e , a i d i n g t h e o v e r a l l j i t t e r a n d n o i s e t o l e r a n c e f o r t h e r e c e i v e r .
A s e r i e s r e s i s t o r i s s h o w n b e t w e e n t h e + 3 . 3 V s u p p l y a n d V C C ( p i n 9 ) c o n n e c t i o n . T h i s r e s i s t o r c o m b i n e s w i t h t h e b y p a s s c a p a c i t o r s t o c r e a t e a s i m p l e R C f i l t e r t o r e m o v e h i g h e r f r e q u e n c y c o m p o n e n t s f r o m t h e V C C s u p p l y . T h e s e r i e s r e s i s t o r s h o u l d b e a m e t a l f i l m t y p e f o r b e s t f i l t e r i n g c h a r a c t e r i s t i c s . A s a s u b s t i t u t e f o r t h e r e s i s t o r , a f e r r i t e b e a d c a n b e u t i l i z e d , a l t h o u g h i t m a y h a v e t o b e p h y s i c a l l y l a r g e i n o r d e r t o c o n t r i b u t e t o t h e f i l t e r i n g .
4 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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NOTE: See Figure 82 for power-supply connections. Da ptional connections to the host.shed lines denote o
373839404142434445
464748
123456789
101112
363534333231302928
272625
242322212019181716151413
BCKALRCKASDINASDOUTANCVIODGND3BGND
SDOUTBSDINBLRCKBBCKB
RX1+RX1RX2+RX2RX3+RX3RX4+RX4VCC AGNDLOCK RXCKO
SYNCBLS
AESOUTVDD33
TX+TX
DGND2GPO4
GPO3GPO2GPO1MCLK
RSTINT
CDOUTCDIN
CCLK CS
CPMVDD18DGND1
RDYMUTERXCKI
SRC4392IPFB
From Digita Inpul ts(Line, Optical, Logic)
To Digital Outputs(Lne,i O ca Lpti l, ogic)
To Host o Exter alr n Logic
To Host or xternalE Logic
SPI
Host
Controller
AudioI/O
Device
AudioI/O
Device
DIRRef Clock
MasterClock
DIR Recovered Clock
VIO
10k
NOTE: See Figure 82 for power-supply connections. Da ptional connect on o e host.shed lines denote o i ts t h
3738394041424344
45464748
123456789
10
1112
3635343332313029
28272625
24232221201918171615
1413
BCKALR KACSDI ANSDOUTANCVIODGND3BGND
SDOUTBSDI BNLR KBCBCKB
RX +1RX 1RX +2RX 2RX +3RX 3RX +4RX 4VCC AGNDLOCK RX KOC
SYNCBLS
AESO TUVDD 33
TX+TX
DGND2GP 4O
GP 3OGP 2OGP 1OMCLK
RSTINT
SDA A1
SCL A0
CPMVDD 81DGND1
RDYMUTERX KIC
SRC4392IPFB
From Digital Inputs(Line, Optica, Logl ic)
To Digital Outputs(Line, Optical, Logic)
To Host or Exte nalr Logic
To Host or Exte nalr Log ic
I C2
Ho ts
Controller
AudioI/O
Device
AudioI/O
Device
DIRRef Clock
MasterClock
DIR Recovered Clock
VIO
10k 2.7k
TieLO or HI
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 8 0 . T y p i c a l A p p l i c a t i o n D i a g r a m U s i n g S P I H o s t I n t e r f a c e
F i g u r e 8 1 . T y p i c a l A p p l i c a t i o n D i a g r a m U s i n g I 2 C H o s t I n t e r f a c e
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 4 1
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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0.1F
10 F 0.1 F 10 F0.1 F
+3. V3
9
10 30
33
4243
44
10 F
R
+
+
+
+
Connect pin 44 to pin 10.
Pi 10n i then connes cted to
the ground pl n .a e+3. V3
0.1 F 0 01 F. 2.2 F
TPS79318DB R V
SRC4392IPFB
Optional Regulator Circuit
1716
R may be set from 2 t ced b fe te b y a rri eo 10 or repla, ad.C may be set to 10 F d when using the opt onal r egulator circuit., or not installe i
1 5
3 4
2
IN
EN
OUT
NRGND
+1.8V
C
0.1 F
D I G I T A L A U D I O T R A N S F O R M E R V E N D O R S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 8 2 . R e c o m m e n d e d P o w e r - S u p p l y C o n n e c t i o n s
T r a n s f o r m e r s a r e s h o w n i n t h i s d a t a s h e e t f o r b o t h r e c e i v e r a n d t r a n s m i t t e r b a l a n c e d a n d u n b a l a n c e d l i n e i n t e r f a c e i m p l e m e n t a t i o n s . F o r t h e T e x a s I n s t r u m e n t s P r o A u d i o e v a l u a t i o n m o d u l e s , t r a n s f o r m e r s f r o m S c i e n t i f i c C o n v e r s i o n a r e u t i l i z e d . I n a d d i t i o n t o S c i e n t i f i c C o n v e r s i o n , t h e r e a r e o t h e r v e n d o r s t h a t o f f e r t r a n s f o r m e r p r o d u c t s f o r d i g i t a l a u d i o i n t e r f a c e a p p l i c a t i o n s . P l e a s e r e f e r t o t h e f o l l o w i n g m a n u f a c t u r e r w e b s i t e s f o r d e t a i l s r e g a r d i n g t h e i r p r o d u c t s a n d s e r v i c e s . O t h e r t r a n s f o r m e r v e n d o r s m a y a l s o b e a v a i l a b l e b y s e a r c h i n g c a t a l o g a n d / o r I n t e r n e t r e s o u r c e s .
• S c i e n t i f i c C o n v e r s i o n : h t t p : / / s c i e n t i f i c o n v e r s i o n . c o m
• S c h o t t C o r p o r a t i o n : h t t p : / / s c h o t t c o r p . c o m
• P u l s e E n g i n e e r i n g : h t t p : / / p u l s e e n g . c o m
4 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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R E C E I V E R I N P U T I N T E R F A C I N G
(1) Insert a 0.1 F cap common-mode DC voltage. acitor when blocking
1:1
110
0.1 F
0.1 F
To RX+
T Ro X
3
2
1
XLR
Digital Input
110 B alanced
C(1)
(1) Insert a 0.1 F cap common-mode DC acitor when blocking components.
1:1
75
0.1 F
0.1 F
To RX+
To RX
Dig tai l Input75 Unbalan ced
(RCA or BNC connector)
C(1)
(a) Transformer-Coupled Unbalanced Line Interface
75
0.1 F
0.1 F
To RX+
To RX
Digital Input
75 Unbalan ced(RCA or BNC connector)
(b) Unbalanced Line Interface Without Transformer
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h i s s e c t i o n d e t a i l s t h e r e c o m m e n d e d i n t e r f a c e s f o r t h e S R C 4 3 9 2 l i n e r e c e i v e r i n p u t s . B a l a n c e d a n d u n b a l a n c e d l i n e i n t e r f a c e s , i n a d d i t i o n t o o p t i c a l r e c e i v e r a n d e x t e r n a l l o g i c i n t e r f a c i n g , w i l l b e d i s c u s s e d .
F o r p r o f e s s i o n a l d i g i t a l a u d i o i n t e r f a c e s , 1 1 0 Ω b a l a n c e d l i n e i n t e r f a c e s a r e e i t h e r r e q u i r e d o r p r e f e r r e d . T r a n s f o r m e r c o u p l i n g i s c o m m o n l y e m p l o y e d t o p r o v i d e i s o l a t i o n a n d t o i m p r o v e c o m m o n - m o d e n o i s e r e j e c t i o n .
F i g u r e 8 3 s h o w s t h e r e c o m m e n d e d t r a n s f o r m e r - c o u p l e d b a l a n c e d l i n e r e c e i v e r i n t e r f a c e f o r t h e S R C 4 3 9 2 . T h e t r a n s f o r m e r i s s p e c i f i e d f o r a 1 : 1 t u r n r a t i o , a n d s h o u l d e x h i b i t l o w i n t e r - w i n d i n g c a p a c i t a n c e f o r b e s t p e r f o r m a n c e . D u e t o t h e D C b i a s o n t h e l i n e r e c e i v e r i n p u t s , 0 . 1 μ F c a p a c i t o r s a r e u t i l i z e d f o r A C - c o u p l i n g t h e t r a n s f o r m e r t o t h e l i n e r e c e i v e r i n p u t s . O n t h e l i n e s i d e o f t h e t r a n s f o r m e r , a n o p t i o n a l 0 . 1 μ F c a p a c i t o r i s s h o w n f o r c a s e s w h e r e a D C b i a s m a y b e a p p l i e d a t t h e t r a n s m i t t e r s i d e o f t h e c o n n e c t i o n . T h e c o u p l i n g c a p a c i t o r s s h o u l d b e s u r f a c e - m o u n t c e r a m i c c h i p t y p e w i t h a n X 7 R o r C 0 G d i e l e c t r i c .
F i g u r e 8 3 . T r a n s f o r m e r - C o u p l e d B a l a n c e d I n p u t I n t e r f a c e
U n b a l a n c e d 7 5 Ω c o a x i a l c a b l e i n t e r f a c e s a r e c o m m o n l y e m p l o y e d i n c o n s u m e r a n d b r o a d c a s t a u d i o a p p l i c a t i o n s . D e s i g n s w i t h a n d w i t h o u t t r a n s f o r m e r l i n e c o u p l i n g m a y b e u t i l i z e d . F i g u r e 8 4 ( a ) s h o w s t h e r e c o m m e n d e d 7 5 Ω t r a n s f o r m e r - c o u p l e d l i n e i n t e r f a c e , w h i c h s h a r e s m a n y s i m i l a r i t i e s t o t h e b a l a n c e d d e s i g n s h o w n i n F i g u r e 8 3 . O n c e a g a i n , t h e t r a n s f o r m e r p r o v i d e s i s o l a t i o n a n d i m p r o v e d n o i s e r e j e c t i o n . F i g u r e 8 4 ( b ) s h o w s t h e t r a n s f o r m e r - f r e e i n t e r f a c e , w h i c h i s c o m m o n l y u s e d f o r S / P D I F c o n s u m e r c o n n e c t i o n s .
F i g u r e 8 4 . U n b a l a n c e d L i n e I n p u t I n t e r f a c e s
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 4 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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VDD33
0.1 F
To RX+
To RX
All-Plastic
(5 or 10 meters maximum)
(1) Toshiba TORX141 or equivalent.
Optical
Receiver(1)
(1) Toshiba TORX173, TORX176, TORX179, or equivalent.
+5V
SN74LVC1G125
or Equivalent
0.1F
T RX+o
To RX
All-Plastic
(5 or 10 meters maximum)
Optical
Receiver(1)
VDD33
5
2
3 1
4
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
O p t i c a l i n t e r f a c e s u t i l i z i n g a l l - p l a s t i c f i b e r a r e c o m m o n l y e m p l o y e d f o r c o n s u m e r a u d i o e q u i p m e n t w h e r e i n t e r c o n n e c t i o n s a r e l e s s t h a n 1 0 m i n l e n g t h . O p t i c a l r e c e i v e r m o d u l e s u t i l i z e d f o r a d i g i t a l a u d i o i n t e r f a c e o p e r a t e f r o m e i t h e r a s i n g l e + 3 . 3 V o r + 5 V s u p p l y a n d h a v e a T T L - , C M O S - , o r l o w - v o l t a g e C M O S - c o m p a t i b l e l o g i c o u t p u t . I n t e r f a c i n g t o + 3 . 3 V o p t i c a l r e c e i v e r s i s s t r a i g h t f o r w a r d w h e n t h e o p t i c a l r e c e i v e r s u p p l y i s p o w e r e d f r o m t h e S R C 4 3 9 2 V D D 3 3 p o w e r s o u r c e , a s s h o w n i n F i g u r e 8 5 . F o r t h e + 5 V o p t i c a l r e c e i v e r s , t h e o u t p u t h i g h l o g i c l e v e l m a y e x c e e d t h e S R C 4 3 9 2 l i n e r e c e i v e r a b s o l u t e m a x i m u m i n p u t v o l t a g e . A l e v e l t r a n s l a t o r i s r e q u i r e d , p l a c e d b e t w e e n t h e o p t i c a l r e c e i v e r o u t p u t a n d t h e S R C 4 3 9 2 l i n e r e c e i v e r i n p u t . F i g u r e 8 6 s h o w s t h e r e c o m m e n d e d i n p u t c i r c u i t w h e n i n t e r f a c i n g a + 5 V o p t i c a l r e c e i v e r t o t h e S R C 4 3 9 2 l i n e r e c e i v e r i n p u t s . T h e T e x a s I n s t r u m e n t s S N 7 4 L V C 1 G 1 2 5 s i n g l e b u f f e r I C i s o p e r a t e d f r o m t h e s a m e + 3 . 3 V s u p p l y u s e d f o r S R C 4 3 9 2 V D D 3 3 s u p p l y . T h i s b u f f e r i n c l u d e s a + 5 V t o l e r a n t d i g i t a l i n p u t , a n d p r o v i d e s t h e l o g i c l e v e l t r a n s l a t i o n r e q u i r e d f o r t h e i n t e r f a c e .
F i g u r e 8 5 . I n t e r f a c i n g t o a + 3 . 3 V O p t i c a l R e c e i v e r M o d u l e
F i g u r e 8 6 . I n t e r f a c i n g t o a + 5 V O p t i c a l R e c e i v e r M o d u l e
4 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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7
or Equivalent
0.1F
T RX+o
To RX
From +5V Logic(TTL or CMOS)
VDD33
5
2
3 1
4
SN74AV C1T45
or Equivalent
0.1F
T RX+o
To RX
From +1.8V or +2.5V
CMOS Logic
+1.8V or +2.5V
5VDD33
63
1
2
4
T R A N S M I T T E R O U T P U T I N T E R F A C I N G
1:1
0.1 F
TX+
TX
3
2
1
XLR
Digital Output110 B alanced
110
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e S R C 4 3 9 2 l i n e r e c e i v e r s m a y a l s o b e d r i v e n d i r e c t l y f r o m e x t e r n a l l o g i c o r l i n e r e c e i v e r d e v i c e s w i t h T T L o r C M O S o u t p u t s . I f t h e l o g i c d r i v i n g t h e l i n e r e c e i v e r i s o p e r a t e d f r o m + 3 . 3 V , t h e n l o g i c l e v e l t r a n s l a t i o n i s n o t b e r e q u i r e d . H o w e v e r , i f t h e e x t e r n a l l o g i c i s o p e r a t e d f r o m a p o w e r - s u p p l y v o l t a g e t h a t e x c e e d s t h e m a x i m u m V D D 3 3 s u p p l y v o l t a g e o f t h e S R C 4 3 9 2 , o r o p e r a t e s f r o m a s u p p l y v o l t a g e l o w e r t h a n + 3 . 3 V , t h e n l e v e l t r a n s l a t i o n i s r e q u i r e d . F i g u r e 8 7 s h o w s t h e r e c o m m e n d e d l o g i c l e v e l t r a n s l a t i o n m e t h o d s , u t i l i z i n g b u f f e r s a n d l e v e l t r a n s l a t o r s a v a i l a b l e f r o m T e x a s I n s t r u m e n t s .
F i g u r e 8 7 . C M O S / T T L I n p u t L o g i c I n t e r f a c e
T h i s s e c t i o n d e t a i l s t h e r e c o m m e n d e d i n t e r f a c e s f o r t h e S R C 4 3 9 2 t r a n s m i t t e r l i n e d r i v e r a n d C M O S b u f f e r e d o u t p u t s . B a l a n c e d a n d u n b a l a n c e d l i n e i n t e r f a c e s , i n a d d i t i o n t o o p t i c a l t r a n s m i t t e r a n d e x t e r n a l l o g i c i n t e r f a c i n g , w i l l b e d i s c u s s e d .
F o r p r o f e s s i o n a l d i g i t a l a u d i o i n t e r f a c e s , 1 1 0 Ω b a l a n c e d l i n e i n t e r f a c e s a r e e i t h e r r e q u i r e d o r p r e f e r r e d . T r a n s f o r m e r c o u p l i n g i s c o m m o n l y e m p l o y e d t o p r o v i d e i s o l a t i o n a n d t o i m p r o v e c o m m o n - m o d e n o i s e p e r f o r m a n c e . F i g u r e 8 8 s h o w s t h e r e c o m m e n d e d t r a n s f o r m e r - c o u p l e d b a l a n c e d l i n e d r i v e r i n t e r f a c e f o r t h e S R C 4 3 9 2 . T h e t r a n s f o r m e r i s s p e c i f i e d f o r a 1 : 1 t u r n r a t i o , a n d s h o u l d e x h i b i t l o w i n t e r - w i n d i n g c a p a c i t a n c e f o r b e s t p e r f o r m a n c e . T o e l i m i n a t e r e s i d u a l D C b i a s , a 0 . 1 μ F c a p a c i t o r i s u t i l i z e d f o r A C - c o u p l i n g t h e t r a n s f o r m e r t o t h e l i n e d r i v e r o u t p u t s . T h e c o u p l i n g c a p a c i t o r s h o u l d b e a s u r f a c e - m o u n t c e r a m i c c h i p t y p e w i t h a n X 7 R o r C 0 G d i e l e c t r i c .
F i g u r e 8 8 . T r a n s f o r m e r - C o u p l e d B a l a n c e d O u t p u t I n t e r f a c e
U n b a l a n c e d 7 5 Ω c o a x i a l c a b l e i n t e r f a c e s a r e c o m m o n l y e m p l o y e d i n c o n s u m e r a n d b r o a d c a s t a u d i o a p p l i c a t i o n s . D e s i g n s w i t h a n d w i t h o u t t r a n s f o r m e r l i n e c o u p l i n g m a y b e u t i l i z e d . F i g u r e 8 9 ( a ) i l l u s t r a t e s t h e r e c o m m e n d e d 7 5 Ω t r a n s f o r m e r - c o u p l e d l i n e d r i v e r i n t e r f a c e , w h i c h s h a r e s m a n y s i m i l a r i t i e s t o t h e b a l a n c e d d e s i g n s h o w n i n F i g u r e 8 8 . F i g u r e 8 9 ( b ) i l l u s t r a t e s t h e t r a n s f o r m e r - f r e e l i n e d r i v e r i n t e r f a c e , w h i c h i s c o m m o n l y u s e d f o r S / P D I F c o n s u m e r c o n n e c t i o n s .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 4 5
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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R1 and R2 are selected to achieve the desired output voltage level while maintaining the required 75 transmitter output impedance.
The TX+ output impedance is negligible.
(a) Transformer-Coupled Unbalanced Output
1:1
R2
0.1 F
TX+Digital Output
75 Unbalan ced(RCA or BNC connector)
R1
(b) Unbalanced Output Without Transformer
R2
0.1F
TX+Digital Output
75 Unbalan ced(RCA or BNC connector)
R1
(1) Toshiba TOTX141, TOTX173, TOTX176, TOTX179, or equivalent.
SN74AVC1T45
or Equivalent
If VIO < +3.0V.
VIO
5+3.3V
63
1
2
4
All-Plastic Fiber
(5 or 10 meters maximum) AESOUT
Optical
Transmitter(1)
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 8 9 . U n b a l a n c e d L i n e O u t p u t I n t e r f a c e s
O p t i c a l i n t e r f a c e s u t i l i z i n g a l l - p l a s t i c f i b e r a r e c o m m o n l y e m p l o y e d f o r c o n s u m e r a u d i o e q u i p m e n t w h e r e i n t e r c o n n e c t i o n s a r e l e s s t h a n 1 0 m i n l e n g t h . M o s t o p t i c a l t r a n s m i t t e r m o d u l e s u t i l i z e d f o r a d i g i t a l a u d i o i n t e r f a c e o p e r a t e f r o m a s i n g l e + 3 . 3 V o r + 5 V s u p p l y a n d h a v e a T T L c o m p a t i b l e l o g i c i n p u t . T h e C M O S b u f f e r e d t r a n s m i t t e r o u t p u t o f t h e S R C 4 3 9 2 , A E S O U T ( p i n 3 4 ) , i s c a p a b l e o f d r i v i n g t h e o p t i c a l t r a n s m i t t e r w i t h V I O s u p p l y v o l t a g e s d o w n t o + 3 . 0 V . I f t h e V I O s u p p l y v o l t a g e i s l e s s t h a n + 3 . 0 V , t h e n l e v e l t r a n s l a t i o n l o g i c i s r e q u i r e d t o d r i v e t h e o p t i c a l t r a n s m i t t e r i n p u t . A g o o d c h o i c e f o r t h i s a p p l i c a t i o n i s t h e T e x a s I n s t r u m e n t s S N 7 4 A V C 1 T 4 5 s i n g l e b u s t r a n s c e i v e r . T h i s d e v i c e f e a t u r e s t w o p o w e r - s u p p l y r a i l s , o n e f o r t h e i n p u t s i d e a n d o n e f o r t h e o u t p u t s i d e . F o r t h i s a p p l i c a t i o n , t h e i n p u t s i d e s u p p l y i s p o w e r e d f r o m t h e V I O s u p p l y , w h i l e t h e o u t p u t s i d e i s p o w e r e d f r o m a + 3 . 3 V s u p p l y . T h i s w i l l b o o s t t h e l o g i c h i g h l e v e l t o a v o l t a g e s u i t a b l e f o r d r i v i n g t h e T T L c o m p a t i b l e i n p u t c o n f i g u r a t i o n . F i g u r e 9 0 s h o w s t h e r e c o m m e n d e d o p t i c a l t r a n s m i t t e r i n t e r f a c e c i r c u i t s .
F i g u r e 9 0 . I n t e r f a c i n g t o a n O p t i c a l T r a n s m i t t e r M o d u l e
T h e A E S O U T o u t p u t m a y a l s o b e u s e d t o d r i v e e x t e r n a l l o g i c o r l i n e d r i v e r d e v i c e s d i r e c t l y . F i g u r e 9 1 i l l u s t r a t e s t h e r e c o m m e n d e d l o g i c i n t e r f a c e t e c h n i q u e s , i n c l u d i n g c o n n e c t i o n s w i t h a n d w i t h o u t l e v e l t r a n s l a t i o n . F i g u r e 9 2 i l l u s t r a t e s a n e x t e r n a l l i n e d r i v e r i n t e r f a c e u t i l i z i n g t h e T e x a s I n s t r u m e n t s S N 7 5 A L S 1 9 1 d u a l d i f f e r e n t i a l l i n e d r i v e r . I f t h e V I O s u p p l y o f t h e S R C 4 3 9 2 i s s e t f r o m + 3 . 0 V t o + 3 . 3 V , n o l o g i c l e v e l t r a n s l a t i o n i s r e q u i r e d b e t w e e n t h e A E S O U T o u t p u t a n d t h e l i n e d r i v e r i n p u t . I f t h e V I O s u p p l y v o l t a g e i s b e l o w t h i s r a n g e , t h e n t h e o p t i o n a l l o g i c l e v e l t r a n s l a t i o n l o g i c o f F i g u r e 9 2 i s r e q u i r e d . T h e S N 7 5 A L S 1 9 1 d u a l l i n e d r i v e r i s e s p e c i a l l y u s e f u l i n a p p l i c a t i o n s w h e r e s i m u l t a n e o u s 7 5 Ω a n d 1 1 0 Ω l i n e i n t e r f a c e s a r e r e q u i r e d .
4 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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SN74AHCT1G125
or Equivalent
+5V
5
2
13
4
Direct to external logic
operating from the VIO supply. AESOUT
To +5V Logic(VIO supply = +3.0V to +3.3V)
SN74AVC1T45
or Equivalent
If VIO < +3.0V.
VIO
+5V
5
+3.3V
63
1
2
4
To Balanced or Unbalanced
Line Interface AESOUT
2
8
7
To Balanced or Unbalanced
Line Interface
3
6
5
1
1
SN75ALS191
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
F i g u r e 9 1 . C M O S / T T L O u t p u t L o g i c I n t e r f a c e
F i g u r e 9 2 . E x t e r n a l L i n e D r i v e r I n t e r f a c e
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 4 7
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R E G I S T E R A N D D A T A B U F F E R O R G A N I Z A T I O N
C O N T R O L R E G I S T E R S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e S R C 4 3 9 2 o r g a n i z e s t h e o n - c h i p r e g i s t e r s a n d d a t a b u f f e r s i n t o f o u r p a g e s . T h e c u r r e n t l y a c t i v e p a g e i s c h o s e n b y p r o g r a m m i n g t h e P a g e S e l e c t i o n R e g i s t e r t o t h e d e s i r e d p a g e n u m b e r . T h e P a g e S e l e c t i o n R e g i s t e r i s a v a i l a b l e o n e v e r y r e g i s t e r p a g e a t a d d r e s s 0 x 7 F , a l l o w i n g e a s y m o v e m e n t b e t w e e n p a g e s . T a b l e 2 i n d i c a t e s t h e p a g e s e l e c t i o n c o r r e s p o n d i n g t o t h e P a g e S e l e c t i o n R e g i s t e r v a l u e .
T a b l e 2 . R e g i s t e r P a g e S e l e c t i o n P a g e S e l e c t i o n R e g i s t e r V a l u e ( H e x ) S e l e c t e d R e g i s t e r P a g e
0 0 P a g e 0 , C o n t r o l a n d S t a t u s R e g i s t e r s
0 1 P a g e 1 , D I R C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r s
0 2 P a g e 2 , D I T C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r s
0 3 P a g e 3 , R e s e r v e d
R e g i s t e r P a g e 0 c o n t a i n s t h e c o n t r o l r e g i s t e r s u t i l i z e d t o c o n f i g u r e t h e v a r i o u s f u n c t i o n b l o c k s w i t h i n t h e S R C 4 3 9 2 . I n a d d i t i o n , s t a t u s r e g i s t e r s a r e p r o v i d e d f o r f l a g a n d e r r o r c o n d i t i o n s , w i t h m a n y o f t h e s t a t u s b i t s c a p a b l e o f g e n e r a t i n g a n i n t e r r u p t s i g n a l w h e n e n a b l e d . S e e T a b l e 3 f o r t h e c o n t r o l a n d s t a t u s r e g i s t e r m a p .
R e g i s t e r P a g e 1 c o n t a i n s t h e d i g i t a l i n t e r f a c e r e c e i v e r ( o r D I R ) c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s . T h e s e b u f f e r s c o r r e s p o n d t o t h e d a t a c o n t a i n e d i n t h e C a n d U b i t s o f t h e p r e v i o u s l y r e c e i v e d b l o c k o f t h e
A E S 3 - e n c o d e d d a t a s t r e a m . T h e c o n t e n t s o f t h e s e b u f f e r s m a y b e r e a d t h r o u g h t h e S P I o r I 2
C s e r i a l h o s t i n t e r f a c e a n d p r o c e s s e d a s n e e d e d b y t h e h o s t s y s t e m . S e e T a b l e 5 f o r t h e D I R c h a n n e l s t a t u s b u f f e r m a p , a n d T a b l e 6 f o r t h e D I R u s e r d a t a b u f f e r m a p .
R e g i s t e r P a g e 2 c o n t a i n s t h e d i g i t a l i n t e r f a c e t r a n s m i t t e r ( o r D I T ) c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s . T h e s e b u f f e r s c o r r e s p o n d t o t h e d a t a c o n t a i n e d i n t h e C a n d U b i t s o f t h e t r a n s m i t t e d A E S 3 - e n c o d e d d a t a s t r e a m . T h e c o n t e n t s o f t h e s e b u f f e r s m a y b e w r i t t e n t h r o u g h t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e t o c o n f i g u r e t h e C a n d U b i t s o f t h e t r a n s m i t t e d A E S 3 d a t a s t r e a m . T h e b u f f e r s m a y a l s o b e r e a d f o r v e r i f i c a t i o n b y t h e h o s t s y s t e m . S e e T a b l e 7 f o r t h e D I T c h a n n e l s t a t u s b u f f e r m a p , a n d T a b l e 8 f o r t h e D I T u s e r d a t a b u f f e r m a p .
R e g i s t e r P a g e 3 i s r e s e r v e d f o r f a c t o r y t e s t a n d v e r i f i c a t i o n p u r p o s e s , a n d c a n n o t b e a c c e s s e d w i t h o u t a n u n l o c k c o d e . T h e u n l o c k c o d e r e m a i n s p r i v a t e ; t h e t e s t m o d e s d i s a b l e n o r m a l o p e r a t i o n o f t h e d e v i c e , a n d a r e n o t u s e f u l i n c u s t o m e r a p p l i c a t i o n s .
S e e T a b l e 3 f o r t h e c o n t r o l a n d s t a t u s r e g i s t e r m a p o f t h e S R C 4 3 9 2 . R e g i s t e r a d d r e s s e s 0 x 0 0 a n d 0 x 3 4 t h r o u g h 0 x 7 E a r e r e s e r v e d f o r f a c t o r y o r f u t u r e u s e . A l l r e g i s t e r a d d r e s s e s a r e e x p r e s s e d a s h e x a d e c i m a l n u m b e r s . T h e f o l l o w i n g p a g e s p r o v i d e d e t a i l e d d e s c r i p t i o n s f o r e a c h c o n t r o l a n d s t a t u s r e g i s t e r .
4 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T a b l e 3 . C o n t r o l a n d S t a t u s R e g i s t e r M a p ( R e g i s t e r P a g e 0 )
A D D R E S S D 7 ( H e x ) ( M S B ) D 6 D 5 D 4 D 3 D 2 D 1 D 0 R E G I S T E R G R O U P
0 1 R E S E T 0 P D A L L P D P A P D P B P D T X P D R X P D S R C P o w e r - D o w n a n d R e s e t
0 2 0 0 0 0 0 T X R X S R C G l o b a l I n t e r r u p t S t a t u s
0 3 0 A M U T E A O U T S 1 A O U T S 0 A M / S A F M T 2 A F M T 1 A F M T 0 P o r t A C o n t r o l
0 4 0 0 0 0 A C L K 1 A C L K 0 A D I V 1 A D I V 0 P o r t A C o n t r o l
0 5 0 B M U T E B O U T S 1 B O U T S 0 B M / S B F M T 2 B F M T 1 B F M T 0 P o r t B C o n t r o l
0 6 0 0 0 0 B C L K 1 B C L K 0 B D I V 1 B D I V 0 P o r t B C o n t r o l
0 7 T X C L K T X D I V 1 T X D I V 0 T X I S 1 T X I S 0 B L S M V A L I D B S S L T r a n s m i t t e r C o n t r o l
0 8 B Y P M U X 1 B Y P M U X 0 A E S M U X L D M U X T X B T D A E S O F F T X M U T E T X O F F T r a n s m i t t e r C o n t r o l
0 9 0 0 0 0 0 V A L S E L T X C U S 1 T X C U S 0 T r a n s m i t t e r C o n t r o l
0 A 0 0 R A T I O R E A D Y 0 0 T S L I P T B T I S R C a n d D I T S t a t u s
0 B 0 0 M R A T I O M R E A D Y 0 0 M T S L I P M T B T I S R C a n d D I T I n t e r r u p t M a s k
0 C R A T I O M 1 R A T I O M 0 R E A D Y M 1 R E A D Y M 0 T S L I P M 1 T S L I P M 0 T B T I M 1 T B T I M 0 S R C a n d D I T I n t e r r u p t M o d e
0 D 0 0 0 R X B T D R X C L K 0 R X M U X 1 R X M U X R e c e i v e r C o n t r o l
0 E 0 0 0 L O L R X A M L L R X C K O D 1 R X C K O D 0 R X C K O E R e c e i v e r C o n t r o l
0 F P 3 P 2 P 1 P 0 J 5 J 4 J 3 J 2 R e c e i v e r P L L C o n f i g u r a t i o n
1 0 J 1 J 0 D 1 3 D 1 2 D 1 1 D 1 0 D 9 D 8 R e c e i v e r P L L C o n f i g u r a t i o n
1 1 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 R e c e i v e r P L L C o n f i g u r a t i o n
1 2 0 0 0 0 0 0 D T S C D / L D I E C 6 1 9 3 7 N o n - P C M A u d i o D e t e c t i o n 1 3 0 0 0 0 0 0 R X C K R 1 R X C K R 0 R e c e i v e r S t a t u s
1 4 C S C R C P A R I T Y V B I T B P E R R Q C H G U N L O C K Q C R C R B T I R e c e i v e r S t a t u s
1 5 0 0 0 0 0 0 0 O S L I P R e c e i v e r S t a t u s
1 6 M C S C R C M P A R I T Y M V B I T M B P E R R M Q C H G M U N L O C K M Q C R C M R B T I R e c e i v e r I n t e r r u p t M a s k
1 7 0 0 0 0 0 0 0 M O S L I P R e c e i v e r I n t e r r u p t M a s k
1 8 Q C H G M 1 Q C H G M 0 U N L O C K M 1 U N L O C K M 0 Q C R C M 1 Q C R C M 0 R B T I M 1 R B T I M 0 R e c e i v e r I n t e r r u p t M o d e
1 9 C S C R C M 1 C S C R C M 0 P A R I T Y M 1 P A R I T Y M 0 V B I T M 1 V B I T M 0 B P E R R M 1 B P E R R M 0 R e c e i v e r I n t e r r u p t M o d e
1 A 0 0 0 0 0 0 O S L I P M 1 O S L I P M 0 R e c e i v e r I n t e r r u p t M o d e
1 B 0 0 0 0 G P O 1 3 G P O 1 2 G P O 1 1 G P O 1 0 G e n e r a l - P u r p o s e O u t ( G P O 1 )
1 C 0 0 0 0 G P O 2 3 G P O 2 2 G P O 2 1 G P O 2 0 G e n e r a l - P u r p o s e O u t ( G P O 2 )
1 D 0 0 0 0 G P O 3 3 G P O 3 2 G P O 3 1 G P O 3 0 G e n e r a l - P u r p o s e O u t ( G P O 3 )
1 E 0 0 0 0 G P O 4 3 G P O 4 2 G P O 4 1 G P O 4 0 G e n e r a l - P u r p o s e O u t ( G P O 4 )
1 F Q 0 Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 7 A u d i o C D Q - C h a n n e l S u b - C o d e
2 0 Q 8 Q 9 Q 1 0 Q 1 1 Q 1 2 Q 1 3 Q 1 4 Q 1 5 A u d i o C D Q - C h a n n e l S u b - C o d e
2 1 Q 1 6 Q 1 7 Q 1 8 Q 1 9 Q 2 0 Q 2 1 Q 2 2 Q 2 3 A u d i o C D Q - C h a n n e l S u b - C o d e
2 2 Q 2 4 Q 2 5 Q 2 6 Q 2 7 Q 2 8 Q 2 9 Q 3 0 Q 3 1 A u d i o C D Q - C h a n n e l S u b - C o d e
2 3 Q 3 2 Q 3 3 Q 3 4 Q 3 5 Q 3 6 Q 3 7 Q 3 8 Q 3 9 A u d i o C D Q - C h a n n e l S u b - C o d e
2 4 Q 4 0 Q 4 1 Q 4 2 Q 4 3 Q 4 4 Q 4 5 Q 4 6 Q 4 7 A u d i o C D Q - C h a n n e l S u b - C o d e
2 5 Q 4 8 Q 4 9 Q 5 0 Q 5 1 Q 5 2 Q 5 3 Q 5 4 Q 5 5 A u d i o C D Q - C h a n n e l S u b - C o d e
2 6 Q 5 6 Q 5 7 Q 5 8 Q 5 9 Q 6 0 Q 6 1 Q 6 2 Q 6 3 A u d i o C D Q - C h a n n e l S u b - C o d e
2 7 Q 6 4 Q 6 5 Q 6 6 Q 6 7 Q 6 8 Q 6 9 Q 7 0 Q 7 1 A u d i o C D Q - C h a n n e l S u b - C o d e
2 8 Q 7 2 Q 7 3 Q 7 4 Q 7 5 Q 7 6 Q 7 7 Q 7 8 Q 7 9 A u d i o C D Q - C h a n n e l S u b - C o d e
2 9 P C 1 5 P C 1 4 P C 1 3 P C 1 2 P C 1 1 P C 1 0 P C 0 9 P C 0 8 P C B u r s t P r e a m b l e , H i g h B y t e
2 A P C 0 7 P C 0 6 P C 0 5 P C 0 4 P C 0 3 P C 0 2 P C 0 1 P C 0 0 P C B u r s t P r e a m b l e , L o w B y t e
2 B P D 1 5 P D 1 4 P D 1 3 P D 1 2 P D 1 1 P D 1 0 P D 0 9 P D 0 8 P D B u r s t P r e a m b l e , H i g h B y t e
2 C P D 0 7 P D 0 6 P D 0 5 P D 0 4 P D 0 3 P D 0 2 P D 0 1 P D 0 0 P D B u r s t P r e a m b l e , L o w B y t e
2 D 0 T R A C K 0 M U T E S R C C L K 1 S R C C L K 0 S R C I S 1 S R C I S 0 S R C C o n t r o l
2 E 0 0 A U T O D E M D E M 1 D E M 0 D D N I G R P 1 I G R P 0 S R C C o n t r o l
2 F O W L 1 O W L 0 0 0 0 0 0 0 S R C C o n t r o l
3 0 A L 7 A L 6 A L 5 A L 4 A L 3 A L 2 A L 1 A L 0 S R C C o n t r o l
3 1 A R 7 A R 6 A R 5 A R 4 A R 3 A R 2 A R 1 A R 0 S R C C o n t r o l
3 2 S R I 4 S R I 3 S R I 2 S R I 1 S R I 0 S R F 1 0 S R F 9 S R F 8 S R C I n p u t : O u t p u t R a t i o
3 3 S R F 7 S R F 6 S R F 5 S R F 4 S R F 3 S R F 2 S R F 1 S R F 0 S R C I n p u t : O u t p u t R a t i o
7 F 0 0 0 0 0 0 P A G E 1 P A G E 0 P a g e S e l e c t i o n
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 4 9
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
5 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 0 1 : P o w e r - D o w n a n d R e s e t
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
R E S E T 0 P D A L L P D P A P D P B P D T X P D R X P D S R C
P D S R C P o w e r - D o w n f o r t h e S R C F u n c t i o n B l o c k
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n t h e S R C a n d a s s o c i a t e d f u n c t i o n s .
P D S R C S R C P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
D i s a b l e d ; t h e S R C f u n c t i o n b l o c k w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e c o n t r o l 1
r e g i s t e r s e t t i n g s .
P D R X P o w e r - D o w n f o r t h e R e c e i v e r F u n c t i o n B l o c k
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n t h e D I R a n d a s s o c i a t e d f u n c t i o n s . A l l r e c e i v e r o u t p u t s a r e f o r c e d l o w .
P D R X R e c e i v e r P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
D i s a b l e d ; t h e R e c e i v e r f u n c t i o n b l o c k w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e 1
c o n t r o l r e g i s t e r s e t t i n g s .
P D T X P o w e r - D o w n f o r t h e T r a n s m i t t e r F u n c t i o n B l o c k
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n t h e D I T a n d a s s o c i a t e d f u n c t i o n s . A l l t r a n s m i t t e r o u t p u t s a r e f o r c e d l o w .
P D T X T r a n s m i t t e r P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
D i s a b l e d ; t h e T r a n s m i t t e r f u n c t i o n b l o c k w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e 1
c o n t r o l r e g i s t e r s e t t i n g s .
P D P B P o w e r - D o w n f o r S e r i a l P o r t B
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n t h e a u d i o s e r i a l I / O P o r t B . A l l p o r t o u t p u t s a r e f o r c e d l o w .
P D P B P o r t B P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
1 D i s a b l e d ; P o r t B w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e c o n t r o l r e g i s t e r s e t t i n g s .
P D P A P o w e r - D o w n f o r S e r i a l P o r t A
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n t h e a u d i o s e r i a l I / O P o r t A . A l l p o r t o u t p u t s a r e f o r c e d l o w .
P D P A P o r t A P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
1 D i s a b l e d ; P o r t A w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e c o n t r o l r e g i s t e r s e t t i n g s .
P D A L L P o w e r - D o w n f o r A l l F u n c t i o n s
T h i s b i t i s u t i l i z e d t o p o w e r - d o w n a l l f u n c t i o n b l o c k s e x c e p t t h e h o s t i n t e r f a c e p o r t a n d t h e c o n t r o l a n d s t a t u s r e g i s t e r s .
P D A L L A l l F u n c t i o n P o w e r - D o w n M o d e
0 E n a b l e d ( D e f a u l t )
D i s a b l e d ; a l l f u n c t i o n b l o c k s w i l l o p e r a t e n o r m a l l y b a s e d u p o n t h e a p p l i c a b l e c o n t r o l r e g i s t e r 1
s e t t i n g s .
R E S E T S o f t w a r e R e s e t
T h i s b i t i s u s e d t o f o r c e a r e s e t i n i t i a l i z a t i o n s e q u e n c e , a n d i s e q u i v a l e n t t o f o r c i n g a n e x t e r n a l r e s e t v i a t h e R S T i n p u t ( p i n 2 4 ) .
R E S E T R e s e t F u n c t i o n
0 D i s a b l e d ( D e f a u l t )
1 E n a b l e d ; a l l c o n t r o l r e g i s t e r s w i l l b e r e s e t t o t h e d e f a u l t s t a t e .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5 1
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 0 2 : G l o b a l I n t e r r u p t S t a t u s ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 T X R X S R C
S R C S R C F u n c t i o n B l o c k I n t e r r u p t S t a t u s ( A c t i v e H i g h )
W h e n s e t t o 1 , t h i s b i t i n d i c a t e s a n a c t i v e i n t e r r u p t f r o m t h e S R C f u n c t i o n b l o c k . T h i s b i t i s a c t i v e h i g h . T h e u s e r s h o u l d t h e n r e a d s t a t u s r e g i s t e r 0 x 0 A i n o r d e r t o d e t e r m i n e w h i c h o f t h e s o u r c e s h a s g e n e r a t e d a n i n t e r r u p t .
R X R e c e i v e r F u n c t i o n B l o c k I n t e r r u p t S t a t u s ( A c t i v e H i g h )
W h e n s e t t o 1 , t h i s b i t i n d i c a t e s a n a c t i v e i n t e r r u p t f r o m t h e D I R f u n c t i o n b l o c k . T h i s b i t i s a c t i v e h i g h . T h e u s e r s h o u l d t h e n r e a d s t a t u s r e g i s t e r s 0 x 1 4 a n d 0 x 1 5 i n o r d e r t o d e t e r m i n e w h i c h o f t h e s o u r c e s h a s g e n e r a t e d a n i n t e r r u p t .
T X T r a n s m i t t e r F u n c t i o n B l o c k I n t e r r u p t S t a t u s ( A c t i v e H i g h )
W h e n s e t t o 1 , t h i s b i t i n d i c a t e s a n a c t i v e i n t e r r u p t f r o m t h e D I T f u n c t i o n b l o c k . T h i s b i t i s a c t i v e h i g h . T h e u s e r s h o u l d t h e n r e a d s t a t u s r e g i s t e r 0 x 0 A i n o r d e r t o d e t e r m i n e w h i c h o f t h e s o u r c e s h a s g e n e r a t e d a n i n t e r r u p t .
R e g i s t e r 0 3 : P o r t A C o n t r o l R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 A M U T E A O U T S 1 A O U T S 0 A M / S A F M T 2 A F M T 1 A F M T 0
A F M T [ 2 : 0 ] P o r t A A u d i o D a t a F o r m a t
T h e s e b i t s a r e u s e d t o s e t t h e a u d i o i n p u t a n d o u t p u t d a t a f o r m a t f o r P o r t A . R e f e r t o t h e A u d i o S e r i a l P o r t O p e r a t i o n s e c t i o n f o r i l l u s t r a t i o n s o f t h e s u p p o r t e d d a t a f o r m a t s . R e f e r t o t h e E l e c t r i c a l C h a r a c t e r i s t i c s : A u d i o S e r i a l P o r t s t a b l e a n d F i g u r e 1 f o r a n a p p l i c a b l e t i m i n g d i a g r a m a n d p a r a m e t e r s .
A F M T 2 A F M T 1 A F M T 0 A u d i o D a t a F o r m a t
0 0 0 2 4 - B i t L e f t - J u s t i f i e d ( D e f a u l t )
0 1 0 2 4 - B i t P h i l i p s I 2 S
0 1 0 U n u s e d
0 1 1 U n u s e d
1 0 0 1 6 - B i t R i g h t - J u s t i f i e d
1 0 1 1 8 - B i t R i g h t - J u s t i f i e d
1 1 0 2 0 - B i t R i g h t - J u s t i f i e d
1 1 1 2 4 - B i t R i g h t - J u s t i f i e d
N o t e : W h e n t h e S R C i s s e l e c t e d a s t h e o u t p u t d a t a s o u r c e f o r P o r t A a n d t h e d a t a f o r m a t f o r t h e p o r t i s s e t t o R i g h t - J u s t i f i e d , t h e p r o p e r w o r d l e n g t h m u s t b e s e l e c t e d i n t h e P o r t A c o n t r o l r e g i s t e r s s u c h t h a t i t m a t c h e s t h e c o r r e s p o n d i n g S R C o u t p u t d a t a w o r d l e n g t h . R e f e r t o
c o n t r o l r e g i s t e r 0 x 2 F f o r t h e S R C o u t p u t w o r d l e n g t h s e l e c t i o n .
A M / S P o r t A S l a v e / M a s t e r M o d e
T h i s b i t i s u s e d t o s e t t h e a u d i o c l o c k m o d e f o r P o r t A t o e i t h e r S l a v e o r M a s t e r .
A M / S S l a v e / M a s t e r M o d e
0 S l a v e m o d e ; t h e L R C K a n d B C K c l o c k s a r e i n p u t s g e n e r a t e d b y a n e x t e r n a l d i g i t a l a u d i o s o u r c e . ( D e f a u l t )
1 M a s t e r m o d e ; t h e L R C K a n d B C K c l o c k s a r e o u t p u t s , d e r i v e d f r o m t h e P o r t A m a s t e r c l o c k s o u r c e .
A O U T S [ 1 : 0 ] P o r t A O u t p u t D a t a S o u r c e
T h e s e b i t s a r e u s e d t o s e l e c t t h e o u t p u t d a t a s o u r c e f o r P o r t A . T h e d a t a i s o u t p u t a t S D O U T A ( p i n 4 0 ) .
A O U T S 1 A O U T S 0 O u t p u t D a t a S o u r c e
0 0 P o r t A I n p u t , f o r d a t a l o o p b a c k . ( D e f a u l t )
0 1 P o r t B I n p u t
1 0 D I R
1 1 S R C
A M U T E P o r t A O u t p u t M u t e
T h i s b i t i s u s e d t o m u t e t h e P o r t A a u d i o d a t a o u t p u t .
A M U T E O u t p u t M u t e
0 D i s a b l e d ; S D O U T A i s d r i v e n b y t h e o u t p u t d a t a s o u r c e . ( D e f a u l t )
1 E n a b l e d ; S D O U T A i s f o r c e d l o w .
5 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 0 4 : P o r t A C o n t r o l R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 A C L K 1 A C L K 0 A D I V 1 A D I V 0
A D I V [ 1 : 0 ] P o r t A M a s t e r C l o c k D i v i d e r
T h e s e b i t s a r e u s e d t o s e t t h e m a s t e r c l o c k d i v i d e r f o r g e n e r a t i n g t h e L R C K A c l o c k f o r P o r t A w h e n c o n f i g u r e d f o r M a s t e r m o d e o p e r a t i o n . B C K A i s a l w a y s s e t t o 6 4 t i m e s t h e L R C K A c l o c k r a t e i n M a s t e r m o d e .
A D I V 1 A D I V 0 M a s t e r M o d e C l o c k D i v i d e r
0 0 D i v i d e B y 1 2 8 ( D e f a u l t )
0 1 D i v i d e B y 2 5 6
1 0 D i v i d e B y 3 8 4
1 1 D i v i d e B y 5 1 2
A C L K [ 1 : 0 ] P o r t A M a s t e r C l o c k S o u r c e
T h e s e b i t s a r e u s e d t o s e t t h e m a s t e r c l o c k s o u r c e f o r P o r t A w h e n c o n f i g u r e d f o r M a s t e r m o d e o p e r a t i o n .
A C L K 1 A C L K 0 M a s t e r C l o c k S o u r c e
0 0 M C L K ( D e f a u l t )
0 1 R X C K I
1 0 R X C K O
1 1 R e s e r v e d
R e g i s t e r 0 5 : P o r t B C o n t r o l R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 B M U T E B O U T S 1 B O U T S 0 B M / S B F M T 2 B F M T 1 B F M T 0
B F M T [ 2 : 0 ] P o r t B A u d i o D a t a F o r m a t
T h e s e b i t s a r e u s e d t o s e t t h e a u d i o i n p u t a n d o u t p u t d a t a f o r m a t f o r P o r t B . R e f e r t o t h e A u d i o S e r i a l P o r t O p e r a t i o n s e c t i o n f o r i l l u s t r a t i o n s o f t h e s u p p o r t e d d a t a f o r m a t s . R e f e r t o t h e E l e c t r i c a l C h a r a c t e r i s t i c s : A u d i o S e r i a l P o r t s t a b l e a n d F i g u r e 1 f o r a n a p p l i c a b l e t i m i n g d i a g r a m a n d p a r a m e t e r s .
B F M T 2 B F M T 1 B F M T 0 A u d i o D a t a F o r m a t
0 0 0 2 4 - B i t L e f t - J u s t i f i e d ( D e f a u l t )
0 1 0 2 4 - B i t P h i l i p s I 2 S
0 1 0 U n u s e d 0 1 1 U n u s e d
1 0 0 1 6 - B i t R i g h t - J u s t i f i e d
1 0 1 1 8 - B i t R i g h t - J u s t i f i e d
1 1 0 2 0 - B i t R i g h t - J u s t i f i e d
1 1 1 2 4 - B i t R i g h t - J u s t i f i e d
N o t e : W h e n t h e S R C i s s e l e c t e d a s t h e o u t p u t d a t a s o u r c e f o r P o r t B a n d t h e d a t a f o r m a t f o r t h e p o r t i s s e t t o R i g h t - J u s t i f i e d , t h e p r o p e r w o r d l e n g t h m u s t b e s e l e c t e d i n t h e P o r t B c o n t r o l r e g i s t e r s s u c h t h a t i t m a t c h e s t h e c o r r e s p o n d i n g S R C o u t p u t d a t a w o r d l e n g t h . R e f e r t o c o n t r o l r e g i s t e r 0 x 2 F f o r t h e S R C o u t p u t w o r d l e n g t h s e l e c t i o n .
B M / S P o r t B S l a v e / M a s t e r M o d e
T h i s b i t i s u s e d t o s e t t h e a u d i o c l o c k m o d e f o r P o r t B t o e i t h e r S l a v e o r M a s t e r .
B M / S S l a v e / M a s t e r M o d e
0 S l a v e m o d e ; t h e L R C K a n d B C K c l o c k s a r e g e n e r a t e d b y a n e x t e r n a l s o u r c e . ( D e f a u l t )
1 M a s t e r m o d e ; t h e L R C K a n d B C K c l o c k s a r e d e r i v e d f r o m t h e P o r t A m a s t e r c l o c k s o u r c e .
B O U T S [ 1 : 0 ] P o r t B O u t p u t S o u r c e
T h e s e b i t s a r e u s e d t o s e l e c t t h e o u t p u t d a t a s o u r c e f o r P o r t B . T h e d a t a i s o u t p u t a t S D O U T B ( p i n 4 5 ) .
B O U T S 1 B O U T S 0 O u t p u t D a t a S o u r c e
0 0 P o r t B I n p u t , f o r d a t a l o o p b a c k . ( D e f a u l t )
0 1 P o r t A I n p u t
1 0 D I R
1 1 S R C
B M U T E P o r t B O u t p u t M u t e
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5 3
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h i s b i t i s u s e d t o m u t e t h e P o r t B a u d i o d a t a o u t p u t .
B M U T E O u t p u t M u t e
0 D i s a b l e d ; S D O U T B i s d r i v e n b y t h e o u t p u t d a t a s o u r c e . ( D e f a u l t )
1 E n a b l e d ; S D O U T B i s f o r c e d l o w .
R e g i s t e r 0 6 : P o r t B C o n t r o l R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 B C L K 1 B C L K 0 B D I V 1 B D I V 0
B D I V [ 1 : 0 ] P o r t B M a s t e r M o d e C l o c k D i v i d e r
T h e s e b i t s a r e u s e d t o s e t t h e m a s t e r c l o c k d i v i d e r f o r g e n e r a t i n g t h e L R C K B c l o c k f o r P o r t B w h e n c o n f i g u r e d f o r M a s t e r m o d e o p e r a t i o n . B C K B i s a l w a y s s e t t o 6 4 t i m e s t h e L R C K B c l o c k r a t e i n M a s t e r m o d e .
B D I V 1 B D I V 0 M a s t e r M o d e C l o c k D i v i d e r
0 0 D i v i d e B y 1 2 8 ( D e f a u l t )
0 1 D i v i d e B y 2 5 6
1 0 D i v i d e B y 3 8 4
1 1 D i v i d e B y 5 1 2
B C L K [ 1 : 0 ] P o r t B M a s t e r C l o c k S o u r c e
T h e s e b i t s a r e u s e d t o s e t t h e m a s t e r c l o c k s o u r c e f o r P o r t B w h e n c o n f i g u r e d f o r M a s t e r m o d e o p e r a t i o n .
B C L K 1 B C L K 0 M a s t e r C l o c k S o u r c e
0 0 M C L K ( D e f a u l t )
0 1 R X C K I
1 0 R X C K O
1 1 R e s e r v e d
R e g i s t e r 0 7 : T r a n s m i t t e r C o n t r o l R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
T X C L K T X D I V 1 T X D I V 0 T X I S 1 T X I S 0 B L S M V A L I D B S S L
B S S L B l o c k S t a r t o r A s y n c h r o n o u s D a t a S l i p I n t e r r u p t T r i g g e r S e l e c t i o n
T h i s b i t i s u s e d t o s e l e c t t h e t r i g g e r s o u r c e f o r t h e T r a n s m i t t e r T S L I P s t a t u s a n d i n t e r r u p t b i t .
B S S L T S L I P I n t e r r u p t T r i g g e r S o u r c e
0 D a t a S l i p C o n d i t i o n ( D e f a u l t )
1 B l o c k S t a r t C o n d i t i o n
V A L I D V a l i d i t y ( V ) D a t a B i t
T h i s b i t m a y b e u s e d t o s e t t h e v a l i d i t y ( o r V ) d a t a b i t i n t h e A E S 3 - e n c o d e d o u t p u t . R e f e r t o t h e V A L S E L b i t i n c o n t r o l r e g i s t e r 0 x 0 9 f o r V - b i t s o u r c e s e l e c t i o n .
V A L I D T r a n s m i t t e d V a l i d i t y ( V ) B i t D a t a
I n d i c a t e s t h a t t h e t r a n s m i t t e d a u d i o d a t a i s s u i t a b l e f o r c o n v e r s i o n t o a n a n a l o g s i g n a l o r f o r f u r t h e r d i g i t a l 0
p r o c e s s i n g . ( D e f a u l t )
I n d i c a t e s t h a t t h e t r a n s m i t t e d a u d i o d a t a i s n o t s u i t a b l e f o r c o n v e r s i o n t o a n a n a l o g s i g n a l o r f o r f u r t h e r 1
d i g i t a l p r o c e s s i n g .
B L S M T r a n s m i t t e r B l o c k S t a r t I n p u t / O u t p u t M o d e
T h i s b i t i s u s e d t o s e l e c t t h e i n p u t / o u t p u t m o d e f o r t h e D I T b l o c k s t a r t p i n , B L S ( p i n 3 5 ) .
B L S M B L S P i n M o d e
0 I n p u t ( D e f a u l t )
1 O u t p u t
5 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T X I S [ 1 : 0 ] T r a n s m i t t e r I n p u t D a t a S o u r c e
T h e s e b i t s a r e u s e d t o s e l e c t t h e a u d i o d a t a s o u r c e f o r t h e D I T f u n c t i o n b l o c k .
T X I S 1 T X I S 0 O u t p u t W o r d L e n g t h
0 0 P o r t A ( D e f a u l t )
0 1 P o r t B
1 0 D I R
1 1 S R C
T X D I V [ 1 : 0 ] T r a n s m i t t e r M a s t e r C l o c k D i v i d e r
T h e s e b i t s a r e u s e d t o s e l e c t t h e T r a n s m i t t e r m a s t e r c l o c k d i v i d e r , w h i c h d e t e r m i n e s t h e o u t p u t f r a m e r a t e .
T X D I V 1 T X D I V 0 C l o c k D i v i d e r
0 0 D i v i d e t h e m a s t e r c l o c k b y 1 2 8 . ( D e f a u l t )
0 1 D i v i d e t h e m a s t e r c l o c k b y 2 5 6 .
1 0 D i v i d e t h e m a s t e r c l o c k b y 3 8 4 .
1 1 D i v i d e t h e m a s t e r c l o c k b y 5 1 2 .
T X C L K T r a n s m i t t e r M a s t e r C l o c k S o u r c e
T h i s b i t i s u s e d t o s e l e c t t h e m a s t e r c l o c k s o u r c e f o r t h e T r a n s m i t t e r b l o c k .
T X C L K T r a n s m i t t e r M a s t e r C l o c k S o u r c e
0 M C L K I n p u t ( D e f a u l t )
1 R X C K O ; t h e r e c o v e r e d m a s t e r c l o c k f r o m t h e D I R f u n c t i o n b l o c k .
R e g i s t e r 0 8 : T r a n s m i t t e r C o n t r o l R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
B Y P M U X 1 B Y P M U X 0 A E S M U X L D M U X T X B T D A E S O F F T X M U T E T X O F F
T X O F F T r a n s m i t t e r L i n e D r i v e r O u t p u t E n a b l e
T h i s b i t i s u s e d t o e n a b l e o r d i s a b l e t h e T X + ( p i n 3 2 ) a n d T X – ( p i n 3 1 ) l i n e d r i v e r o u t p u t s .
T X O F F T r a n s m i t t e r L i n e D r i v e r
0 E n a b l e d ; t h e l i n e d r i v e r o u t p u t s f u n c t i o n n o r m a l l y . ( D e f a u l t )
1 D i s a b l e d ; t h e l i n e d r i v e r o u t p u t s a r e f o r c e d l o w .
T X M U T E T r a n s m i t t e r A u d i o D a t a M u t e
T h i s b i t i s u s e d t o s e t t h e 2 4 b i t s o f a u d i o a n d a u x i l i a r y d a t a t o a l l z e r o s f o r b o t h C h a n n e l s 1 a n d 2 . T X M U T E T r a n s m i t t e r A u d i o D a t a M u t e
0 D i s a b l e d ( D e f a u l t )
1 E n a b l e d ; t h e a u d i o d a t a f o r b o t h C h a n n e l s 1 a n d 2 a r e s e t t o a l l z e r o s .
A E S O F F A E S O U T O u t p u t E n a b l e
T h i s b i t i s u s e d t o e n a b l e o r d i s a b l e t h e A E S O U T ( p i n 3 4 ) b u f f e r e d A E S 3 - e n c o d e d C M O S l o g i c l e v e l o u t p u t .
A E S O F F A E S O U T O u t p u t
0 E n a b l e d ; t h e A E S O U T p i n f u n c t i o n s n o r m a l l y . ( D e f a u l t )
1 D i s a b l e d ; t h e A E S O U T p i n i s f o r c e d l o w .
T X B T D T r a n s m i t t e r C a n d U D a t a B u f f e r T r a n s f e r D i s a b l e
T h i s b i t i s u s e d t o e n a b l e a n d d i s a b l e b u f f e r t r a n s f e r s b e t w e e n t h e D I T U s e r A c c e s s ( U A ) a n d D I T T r a n s m i t t e r A c c e s s ( T A ) b u f f e r s f o r b o t h c h a n n e l s t a t u s ( C ) a n d u s e r ( U ) d a t a .
B u f f e r t r a n s f e r s m a y b e d i s a b l e d , a l l o w i n g t h e u s e r t o w r i t e n e w C a n d U d a t a t o t h e U A b u f f e r s v i a t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e .
O n c e u p d a t e d , U A - t o - T A b u f f e r t r a n s f e r s m a y t h e n b e r e - e n a b l e d , a l l o w i n g t h e T A b u f f e r t o b e u p d a t e d a n d t h e n e w C a n d U d a t a t o b e t r a n s m i t t e d a t t h e s t a r t o f t h e n e x t b l o c k .
T X B T D U s e r A c c e s s ( U A ) t o T r a n s m i t t e r A c c e s s ( T A ) B u f f e r T r a n s f e r s
0 E n a b l e d ( D e f a u l t )
1 D i s a b l e d ; a l l o w s t h e u s e r t o u p d a t e D I T C a n d U d a t a b u f f e r s .
N o t e : T h e T X C U S 0 a n d T X C U S 1 b i t s i n c o n t r o l r e g i s t e r 0 x 0 9 m u s t b e s e t t o a n o n - z e r o v a l u e i n o r d e r f o r D I T U A b u f f e r u p d a t e s t o o c c u r .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5 5
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
L D M U X T r a n s m i t t e r L i n e D r i v e r I n p u t S o u r c e S e l e c t i o n
T h i s b i t i s u s e d t o s e l e c t t h e i n p u t s o u r c e f o r t h e D I T d i f f e r e n t i a l l i n e d r i v e r o u t p u t s .
L D M U X L i n e D r i v e r I n p u t S o u r c e
0 D I T A E S 3 E n c o d e r O u t p u t ( D e f a u l t )
1 B y p a s s M u l t i p l e x e r O u t p u t
A E S M U X A E S O U T C M O S B u f f e r I n p u t S o u r c e S e l e c t i o n
T h i s b i t i s u s e d t o s e l e c t t h e i n p u t s o u r c e f o r t h e A E S O U T C M O S l o g i c l e v e l o u t p u t .
A E S M U X A E S O U T B u f f e r I n p u t S o u r c e
0 D I T A E S 3 E n c o d e r O u t p u t ( D e f a u l t )
1 B y p a s s M u l t i p l e x e r O u t p u t
B Y P M U X [ 1 : 0 ] B y p a s s M u l t i p l e x e r S o u r c e S e l e c t i o n
T h e s e b i t s s e l e c t t h e l i n e r e c e i v e r o u t p u t t o b e u t i l i z e d a s t h e B y p a s s m u l t i p l e x e r d a t a s o u r c e .
B Y P M U X 1 B Y P M U X 0 L i n e R e c e i v e r O u t p u t S e l e c t i o n
0 0 R X 1 ( D e f a u l t )
0 1 R X 2
1 0 R X 3
1 1 R X 4
R e g i s t e r 0 9 : T r a n s m i t t e r C o n t r o l R e g i s t e r 3 B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 V A L S E L T X C U S 1 T X C U S 0
T X C U S [ 1 : 0 ] T r a n s m i t t e r C h a n n e l S t a t u s a n d U s e r D a t a S o u r c e
T h e s e b i t s s e l e c t t h e s o u r c e o f t h e c h a n n e l s t a t u s ( o r C ) d a t a a n d u s e r ( o r U ) d a t a w h i c h i s u s e d t o l o a d t h e D I T U s e r A c c e s s ( U A ) b u f f e r s .
T X C U S 1 T X C U S 0 D I T U A B u f f e r S o u r c e
0 0 T h e b u f f e r s w i l l n o t b e u p d a t e d . ( D e f a u l t )
1 0 T h e b u f f e r s a r e u p d a t e d v i a t h e S P I o r I 2 C h o s t i n t e r f a c e .
1 0 T h e b u f f e r s a r e u p d a t e d v i a t h e D I R R A b u f f e r s .
T h e f i r s t 1 0 b y t e s o f t h e b u f f e r s a r e u p d a t e d v i a t h e S P I o r I 2 C h o s t , w h i l e t h e 1 1
r e m a i n d e r o f t h e b u f f e r s a r e u p d a t e d v i a t h e D I R R A b u f f e r s .
V A L S E L T r a n s m i t t e r V a l i d i t y B i t S o u r c e
T h i s b i t i s u t i l i z e d t o s e l e c t t h e s o u r c e f o r t h e v a l i d i t y ( o r V ) b i t i n t h e A E S 3 - e n c o d e d o u t p u t d a t a s t r e a m .
V A L S E L V a l i d i t y ( o r V ) B i t S o u r c e S e l e c t i o n
0 T h e V A L I D b i t i n c o n t r o l r e g i s t e r 0 x 0 7 .
1 T h e V b i t i s t r a n s f e r r e d f r o m t h e D I R b l o c k w i t h z e r o l a t e n c y .
R e g i s t e r 0 A : S R C a n d D I T S t a t u s ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 R A T I O R E A D Y 0 0 T S L I P T B T I
T B T I T r a n s m i t t e r B u f f e r T r a n s f e r S t a t u s , A c t i v e H i g h
W h e n D I T U s e r A c c e s s ( U A ) t o T r a n s m i t t e r A c c e s s ( T A ) b u f f e r t r a n s f e r s a r e e n a b l e d ( t h e T X B T D b i t i n c o n t r o l r e g i s t e r 0 x 0 8 i s s e t t o 0 ) , a n d t h e T B T I i n t e r r u p t i s u n m a s k e d ( t h e M T B T I b i t i n c o n t r o l r e g i s t e r 0 x 0 B i s s e t t o 1 ) , t h e T B T I b i t w i l l b e s e t t o 1 w h e n t h e U A - t o - T A b u f f e r t r a n s f e r h a s c o m p l e t e d . T h i s c o n f i g u r a t i o n a l s o c a u s e s t h e I N T o u t p u t ( p i n 2 3 ) t o b e d r i v e n l o w a n d t h e T X b i t i n s t a t u s
r e g i s t e r 0 x 0 2 t o b e s e t t o 1 , i n d i c a t i n g t h a t a n i n t e r r u p t h a s o c c u r r e d .
T S L I P T r a n s m i t t e r S o u r c e D a t a S l i p S t a t u s , A c t i v e H i g h
T h e T S L I P b i t w i l l b e s e t t o 1 w h e n e i t h e r a n a s y n c h r o n o u s d a t a s l i p o r b l o c k s t a r t c o n d i t i o n i s d e t e c t e d , a n d t h e T S L I P i n t e r r u p t i s u n m a s k e d ( t h e M T S L I P b i t i n c o n t r o l r e g i s t e r 0 x 0 B i s s e t t o 1 ) . T h e B S S L b i t i n c o n t r o l r e g i s t e r 0 x 0 7 i s u s e d t o s e t t h e s o u r c e f o r t h i s i n t e r r u p t . T h e T S L I P b i t b e i n g f o r c e d t o 1 w i l l a l s o c a u s e t h e I N T o u t p u t ( p i n 2 3 ) t o b e d r i v e n l o w a n d t h e T X b i t i n s t a t u s r e g i s t e r 0 x 0 2 t o b e s e t t o 1 , i n d i c a t i n g t h a t a n i n t e r r u p t h a s o c c u r r e d .
R E A D Y S R C R a t e E s t i m a t o r R e a d y S t a t u s , A c t i v e H i g h
T h e R E A D Y b i t w i l l b e s e t t o 1 w h e n t h e i n p u t a n d o u t p u t r a t e e s t i m a t o r s h a v e c o m p l e t e d t h e F a s t m o d e p o r t i o n o f t h e r a t e e s t i m a t i o n p r o c e s s , a n d t h e R E A D Y i n t e r r u p t i s u n m a s k e d ( t h e M R E A D Y b i t i n c o n t r o l r e g i s t e r 0 x 0 B i s s e t t o 1 ) . T h i s w i l l a l s o c a u s e t h e I N T o u t p u t ( p i n 2 3 ) t o b e d r i v e n l o w a n d t h e S R C b i t i n s t a t u s r e g i s t e r 0 x 0 2 t o b e s e t t o 1 , i n d i c a t i n g t h a t a n i n t e r r u p t h a s o c c u r r e d .
5 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R A T I O S R C R a t i o S t a t u s , A c t i v e H i g h
T h e R A T I O b i t w i l l b e s e t t o 1 w h e n t h e i n p u t s a m p l i n g r a t e i s h i g h e r t h a n t h e o u t p u t s a m p l i n g r a t e , a n d t h e R A T I O i n t e r r u p t i s u n m a s k e d ( t h e M R A T I O b i t i n c o n t r o l r e g i s t e r 0 x 0 B i s s e t t o 1 ) . T h i s w i l l a l s o c a u s e t h e I N T o u t p u t ( p i n 2 3 ) t o b e d r i v e n l o w a n d t h e S R C b i t i n s t a t u s r e g i s t e r 0 x 0 2 t o b e s e t t o 1 , i n d i c a t i n g t h a t a n i n t e r r u p t h a s o c c u r r e d .
R e g i s t e r 0 B : S R C a n d D I T I n t e r r u p t M a s k R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 M R A T I O M R E A D Y 0 0 M T S L I P M T B T I
M B T I T r a n s m i t t e r B u f f e r T r a n s f e r I n t e r r u p t M a s k
M T B I B T I I n t e r r u p t M a s k
0 B T I i n t e r r u p t i s m a s k e d . ( D e f a u l t )
1 B T I i n t e r r u p t i s e n a b l e d .
M T S L I P T r a n s m i t t e r T S L I P I n t e r r u p t M a s k
M T S L I P T S L I P I n t e r r u p t M a s k
0 T S L I P i n t e r r u p t i s m a s k e d . ( D e f a u l t )
1 T S L I P i n t e r r u p t i s e n a b l e d .
M R E A D Y S R C R e a d y I n t e r r u p t M a s k
M R E A D Y R E A D Y I n t e r r u p t M a s k
0 R E A D Y i n t e r r u p t i s m a s k e d . ( D e f a u l t )
1 R E A D Y i n t e r r u p t i s e n a b l e d .
M R A T I O S R C R a t i o I n t e r r u p t M a s k
M R A T I O R A T I O I n t e r r u p t M a s k
0 R A T I O i n t e r r u p t i s m a s k e d . ( D e f a u l t )
1 R A T I O i n t e r r u p t i s e n a b l e d .
R e g i s t e r 0 C : S R C a n d D I T I n t e r r u p t M o d e R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
R A T I O M 1 R A T I O M 0 R E A D Y M 1 R E A D Y M 0 T S L I P M 1 T S L I P M 0 T B T I M 1 T B T I M 0
T B T I M [ 1 : 0 ] T r a n s m i t t e r B u f f e r T r a n s f e r I n t e r r u p t M o d e
T h e s e b i t s a r e u t i l i z e d t o s e l e c t t h e a c t i v e t r i g g e r s t a t e f o r t h e B T I i n t e r r u p t . T B T I M 1 T B T I M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
T S L I P M [ 1 : 0 ] T r a n s m i t t e r D a t a S o u r c e S l i p I n t e r r u p t M o d e
T h e s e b i t s a r e u t i l i z e d t o s e l e c t t h e a c t i v e t r i g g e r s t a t e f o r t h e T S L I P i n t e r r u p t .
T S L I P M 1 T S L I P M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5 7
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R E A D Y M [ 1 : 0 ] S R C R e a d y I n t e r r u p t M o d e
T h e s e b i t s a r e u t i l i z e d t o s e l e c t t h e a c t i v e t r i g g e r s t a t e f o r t h e R E A D Y i n t e r r u p t .
R E A D Y M 1 R E A D Y M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
R A T I O M [ 1 : 0 ] S R C R a t i o I n t e r r u p t M o d e
T h e s e b i t s a r e u t i l i z e d t o s e l e c t t h e a c t i v e t r i g g e r s t a t e f o r t h e R A T I O i n t e r r u p t .
R A T I O M 1 R A T I O M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
R e g i s t e r 0 D : R e c e i v e r C o n t r o l R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 R X B T D R X C L K 0 R X M U X 1 R X M U X 0
R X M U X [ 1 : 0 ] R e c e i v e r I n p u t S o u r c e S e l e c t i o n
T h e s e b i t s a r e u s e d t o s e l e c t t h e o u t p u t o f t h e l i n e r e c e i v e r t o b e u s e d a s t h e i n p u t d a t a s o u r c e f o r t h e D I R c o r e .
R X M U X 1 R X M U X 0 I n p u t S e l e c t i o n
0 0 R X 1 ( D e f a u l t )
0 1 R X 2
1 0 R X 3
1 1 R X 4
R X C L K R e c e i v e r R e f e r e n c e C l o c k S o u r c e
T h i s b i t i s u s e d t o s e l e c t t h e r e f e r e n c e c l o c k s o u r c e f o r P L L 1 i n t h e D I R c o r e .
R X C L K R e c e i v e r R e f e r e n c e C l o c k
0 R X C K I ( D e f a u l t )
1 M C L K
R X B T D R e c e i v e r C a n d U D a t a B u f f e r T r a n s f e r D i s a b l e
T h i s b i t i s u s e d t o e n a b l e a n d d i s a b l e b u f f e r t r a n s f e r s b e t w e e n t h e R e c e i v e r A c c e s s ( R A ) a n d U s e r A c c e s s ( U A ) b u f f e r s f o r b o t h c h a n n e l s t a t u s ( C ) a n d u s e r ( U ) d a t a .
B u f f e r t r a n s f e r s a r e t y p i c a l l y d i s a b l e d t o a l l o w t h e c u s t o m e r t o r e a d C a n d U d a t a f r o m t h e D I R U A b u f f e r v i a t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e . O n c e r e a d , t h e R A - t o - U A b u f f e r t r a n s f e r c a n b e r e - e n a b l e d t o a l l o w t h e R A b u f f e r t o u p d a t e t h e c o n t e n t s o f t h e U A b u f f e r i n r e a l t i m e .
R X B T D R e c e i v e r A c c e s s ( R A ) t o U s e r A c c e s s ( U A ) B u f f e r T r a n s f e r s
0 E n a b l e d ( D e f a u l t )
1 D i s a b l e d ; t h e u s e r m a y r e a d C a n d U d a t a f r o m t h e D I R U A b u f f e r s .
5 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 0 E : R e c e i v e r C o n t r o l R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 L O L R X A M L L R X C K O D 1 R X C K O D 0 R X C K O E
R X C K O E R X C K O E O u t p u t E n a b l e
T h i s b i t i s u s e d t o e n a b l e o r d i s a b l e t h e r e c o v e r e d c l o c k o u t p u t , R X C K O ( p i n 1 2 ) . W h e n d i s a b l e d , t h e o u t p u t i s s e t t o a h i g h - i m p e d a n c e s t a t e .
R X C K O E R X C K O O u t p u t S t a t e
0 D i s a b l e d ; t h e R X C K O o u t p u t i s s e t t o h i g h - i m p e d a n c e . ( D e f a u l t )
1 E n a b l e d ; t h e r e c o v e r e d m a s t e r c l o c k i s a v a i l a b l e a t R X C K O .
R X C K O D [ 1 : 0 ] R X C K O O u t p u t C l o c k D i v i d e r
T h e s e b i t s a r e u t i l i z e d t o s e t t h e c l o c k d i v i d e r a t t h e o u t p u t o f P L L 2 . T h e o u t p u t o f t h e d i v i d e r i s t h e R X C K O c l o c k , a v a i l a b l e i n t e r n a l l y o r a t t h e R X C K O o u t p u t ( p i n 1 2 ) .
R X C K O D 1 R X C K O D 0 R X C K O O u t p u t D i v i d e r
0 0 P a s s t h r o u g h , n o d i v i s i o n i s p e r f o r m e d . ( D e f a u l t )
0 1 D i v i d e t h e P L L 2 c l o c k o u t p u t b y 2 .
1 0 D i v i d e t h e P L L 2 c l o c k o u t p u t b y 4 .
1 1 D i v i d e t h e P L L 2 c l o c k o u t p u t b y 8 .
R X A M L L R e c e i v e r A u t o m a t i c M u t e f o r L o s s o f L o c k
T h i s b i t i s u s e d t o s e t t h e a u t o m a t i c m u t e f u n c t i o n f o r t h e D I R b l o c k w h e n a l o s s o f l o c k i s i n d i c a t e d b y b o t h t h e A E S 3 d e c o d e r a n d P L L 2 .
R X A M L L R e c e i v e r A u t o - M u t e F u n c t i o n
0 D i s a b l e d ( D e f a u l t )
1 E n a b l e d ; a u d i o d a t a o u t p u t f r o m t h e D I R b l o c k i s f o r c e d l o w f o r a l o s s o f l o c k c o n d i t i o n .
L O L R e c e i v e r L o s s o f L o c k M o d e f o r t h e R e c o v e r e d C l o c k ( o u t p u t f r o m P L L 2 )
T h i s b i t i s u s e d t o s e t t h e m o d e o f o p e r a t i o n f o r P L L 2 w h e n a l o s s o f l o c k c o n d i t i o n o c c u r s .
L O L R e c e i v e r P L L 2 O p e r a t i o n
0 T h e P L L 2 o u t p u t c l o c k i s s t o p p e d f o r a l o s s o f l o c k c o n d i t i o n . ( D e f a u l t )
1 T h e P L L 2 o u t p u t c l o c k f r e e r u n s w h e n a l o s s o f l o c k c o n d i t i o n o c c u r s .
R e g i s t e r 0 F : R e c e i v e r P L L 1 C o n f i g u r a t i o n R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
P 3 P 2 P 1 P 0 J 5 J 4 J 3 J 2
R e g i s t e r 1 0 : R e c e i v e r P L L 1 C o n f i g u r a t i o n R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
J 1 J 0 D 1 3 D 1 2 D 1 1 D 1 0 D 9 D 8
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 5 9
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 1 1 : R e c e i v e r P L L 1 C o n f i g u r a t i o n R e g i s t e r 3
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0
R e g i s t e r s 0 x 0 F t h r o u g h 0 x 1 1 a r e u t i l i z e d t o p r o g r a m P L L 1 i n t h e D I R c o r e . P L L 1 m u l t i p l i e s t h e D I R r e f e r e n c e c l o c k s o u r c e t o a n o v e r s a m p l i n g r a t e w h i c h i s a d e q u a t e f o r A E S 3 d e c o d e r o p e r a t i o n . P L L 1 i s p r o g r a m m e d u s i n g t h e f o l l o w i n g r e l a t i o n s h i p :
( C L O C K × K ) / P = 9 8 . 3 0 4 M H z
w h e r e : C L O C K = f r e q u e n c y o f t h e D I R r e f e r e n c e c l o c k s o u r c e .
K = J . D , w h e r e t h e i n t e g e r p a r t J = 1 t o 6 3 , a n d t h e f r a c t i o n a l p a r t D = 0 t o 9 9 9 9 . P = t h e p r e - d i v i d e r v a l u e , w h i c h m a y b e s e t t o a n y 4 - b i t v a l u e t h a t m e e t s t h e c o n d i t i o n s s t a t e d b e l o w . T h e f o l l o w i n g c o n d i t i o n s m u s t b e m e t f o r t h e v a l u e s o f P , J , a n d D :
I f D = 0 , t h e n : I f D ≠ 0 , t h e n :
2 M H z ≤ ( C L O C K / P ) ≤ 2 0 M H z a n d 4 ≤ J ≤ 5 5 . 1 0 M H z ≤ ( C L O C K / P ) ≤ 2 0 M H z a n d 4 ≤ J ≤ 1 1 .
R e f e r r i n g t o r e g i s t e r s 0 x 0 F t h r o u g h 0 x 1 1 : P i s p r o g r a m m e d u s i n g b i t s P [ 3 : 0 ] . J i s p r o g r a m m e d u s i n g b i t s J [ 5 : 0 ] . D i s p r o g r a m m e d u s i n g b i t s D [ 1 3 : 0 ] . T a b l e 4 s h o w s v a l u e s f o r P , J , a n d D f o r c o m m o n D I R r e f e r e n c e c l o c k r a t e s .
T a b l e 4 . P L L 1 R e g i s t e r V a l u e s f o r C o m m o n R e f e r e n c e C l o c k R a t e s
R E F E R E N C E C L O C K R A T E ( M H z ) P J D E R R O R ( % )
8 . 1 9 2 0 1 1 2 0 0 . 0 0 0 0
1 1 . 2 8 9 6 1 8 7 0 7 5 0 . 0 0 0 2
1 2 . 2 8 8 0 1 8 0 0 . 0 0 0 0
1 6 . 3 8 4 0 1 6 0 0 . 0 0 0 0
2 2 . 5 7 9 2 2 8 7 0 7 5 0 . 0 0 0 2
2 4 . 5 7 6 0 2 8 0 0 . 0 0 0 0
2 7 . 0 0 0 0 2 7 2 8 1 8 0 . 0 0 0 3
R e g i s t e r 1 2 : N o n - P C M A u d i o D e t e c t i o n S t a t u s R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 D T S C D / L D I E C 6 1 9 3 7
I E C 6 1 9 3 7 T h i s b i t i s u t i l i z e d t o i n d i c a t e t h e d e t e c t i o n o f a n I E C 6 1 9 3 7 d a t a r e d u c e d a u d i o f o r m a t ( i n c l u d e s D o l b y A C - 3 , D T S , e t c . ) f o r D V D p l a y b a c k o r g e n e r a l t r a n s m i s s i o n p u r p o s e s .
I E C 6 1 9 3 7 S t a t u s
0 D a t a i s n o t a n I E C 6 1 9 3 7 f o r m a t .
D a t a i s a n I E C 6 1 9 3 7 f o r m a t . R e f e r t o t h e P C a n d P D p r e a m b l e r e g i s t e r s ( a d d r e s s e s 0 x 2 9 1
t h r o u g h 0 x 2 C ) f o r d a t a t y p e a n d b u r s t l e n g t h .
D T S C D / L D T h i s b i t i s u s e d t o i n d i c a t e t h e d e t e c t i o n o f a D T S e n c o d e d a u d i o c o m p a c t d i s c ( C D ) o r L a s e r d i s c ( L D ) p l a y b a c k .
D T S C D / L D S t a t u s
0 T h e C D / L D i s n o t D T S e n c o d e d .
1 D T S C D / L D p l a y b a c k d e t e c t e d .
6 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 1 3 : R e c e i v e r S t a t u s R e g i s t e r 1 ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 R X C K R 1 R X C K R 0
R X C K R [ 1 : 0 ] M a x i m u m A v a i l a b l e R e c o v e r e d C l o c k R a t e
T h e s e t w o b i t s i n d i c a t e t h e m a x i m u m a v a i l a b l e R X C K O c l o c k r a t e b a s e d u p o n t h e D I R d e t e c t i o n c i r c u i t r y , w h i c h d e t e r m i n e s t h e f r a m e r a t e o f t h e i n c o m i n g A E S 3 - e n c o d e d b i t s t r e a m . B a s e d u p o n t h e e s t i m a t e d f r a m e r a t e , a m a x i m u m r a t e f o r t h e r e c o v e r e d c l o c k o u t p u t ( R X C K O ) i s d e t e r m i n e d a n d o u t p u t f r o m P L L 2 , a s w e l l a s b e i n g l o a d e d i n t o t h e R X C K R 0 a n d R X C K R 1 s t a t u s b i t s . T h e s t a t u s o f t h e R X C K R 0 a n d R X C K R 1 b i t s m a y b e u t i l i z e d t o d e t e r m i n e t h e p r o g r a m m e d v a l u e f o r t h e P L L 2 o u t p u t c l o c k d i v i d e r , s e t b y t h e R X C K O D 0 a n d R X C K O D 1 b i t s i n c o n t r o l r e g i s t e r 0 x 0 E .
R X C K R 1 R X C K R 0 M a x i m u m A v a i l a b l e R X C K O R a t e
0 0 C l o c k r a t e n o t d e t e r m i n e d .
0 1 1 2 8 f S
1 0 2 5 6 f S
1 1 5 1 2 f S
R e g i s t e r 1 4 : R e c e i v e r S t a t u s R e g i s t e r 2 ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
C S C R C P A R I T Y V B I T B P E R R Q C H G U N L O C K Q C R C R B T I
N o t e : S t a t u s b i t s m u s t b e u n m a s k e d i n c o n t r o l r e g i s t e r 0 x 1 6 i n o r d e r f o r t h e s t a t u s i n t e r r u p t s t o b e g e n e r a t e d . C S C R C C h a n n e l S t a t u s C R C S t a t u s
C S C R C C R C S t a t u s
0 N o E r r o r
1 C R C E r r o r D e t e c t e d
P A R I T Y P a r i t y S t a t u s
P A R I T Y P a r i t y S t a t u s
0 N o E r r o r
1 P a r i t y E r r o r D e t e c t e d
V B I T V a l i d i t y B i t S t a t u s
V B I T V a l i d i t y B i t
0 V a l i d A u d i o D a t a I n d i c a t e d
1 N o n - V a l i d D a t a I n d i c a t e d
B P E R R B i p o l a r E n c o d i n g E r r o r S t a t u s
B P E R R B i p o l a r E n c o d i n g S t a t u s
0 N o E r r o r
1 B i p o l a r E n c o d i n g E r r o r D e t e c t e d
Q C H G Q - C h a n n e l S u b - C o d e D a t a C h a n g e S t a t u s
Q C H G Q - C h a n n e l D a t a S t a t u s
0 N o c h a n g e i n Q - c h a n n e l s u b - c o d e d a t a .
Q - c h a n n e l d a t a h a s c h a n g e d . M a y b e u s e d t o t r i g g e r a r e a d o f t h e Q - c h a n n e l s u b - c o d e 1
d a t a , r e g i s t e r s 0 x 1 F t h r o u g h 0 x 2 8 .
U N L O C K D I R U n l o c k E r r o r S t a t u s
U N L O C K D I R L o c k S t a t u s
0 N o e r r o r ; t h e D I R A E S 3 d e c o d e r a n d P L L 2 a r e l o c k e d .
1 D I R l o c k e r r o r ; t h e A E S 3 d e c o d e r a n d P L L 2 a r e u n l o c k e d .
Q C R C Q - C h a n n e l S u b - C o d e C R C S t a t u s
Q C R C Q - C h a n n e l C R C S t a t u s
0 N o E r r o r
1 Q - c h a n n e l s u b - c o d e d a t a C R C e r r o r d e t e c t e d .
R B T I R e c e i v e r B u f f e r T r a n s f e r I n t e r r u p t S t a t u s
R B T I D I R R A B u f f e r - t o - U A B u f f e r T r a n s f e r S t a t u s
0 B u f f e r T r a n s f e r I n c o m p l e t e , o r N o B u f f e r T r a n s f e r I n t e r r u p t I n d i c a t e d
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 6 1
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Y X Y X
L R L R
L R L R
R L R L
AES3 Bit Stream
DIR SYNC
LRCK, I2S Format (input)
LRCK, Left or Right
Justified Formats (input)
5% 5%
Data Slip or Repeat may occur when the LRCK edges indicated are within the 5% window.
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
1 B u f f e r T r a n s f e r C o m p l e t e d
R e g i s t e r 1 5 : R e c e i v e r S t a t u s R e g i s t e r 3 ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 0 O S L I P
N o t e : S t a t u s b i t s m u s t b e u n m a s k e d i n c o n t r o l r e g i s t e r 0 x 1 7 i n o r d e r f o r t h e s t a t u s i n t e r r u p t s t o b e g e n e r a t e d .
O S L I P R e c e i v e r O u t p u t D a t a S l i p E r r o r S t a t u s
O S L I P R e c e i v e r O S L I P E r r o r S t a t u s
0 N o E r r o r
1 D I R O u t p u t D a t a S l i p / R e p e a t E r r o r D e t e c t e d
A n O S L I P i n t e r r u p t i s p o s s i b l e w h e n t h e D I R o u t p u t i s u s e d a s t h e s o u r c e f o r e i t h e r t h e P o r t A o r P o r t B a u d i o s e r i a l p o r t a n d t h e p o r t i s c o n f i g u r e d t o o p e r a t e i n s l a v e m o d e . F i g u r e 9 3 s h o w s t h e t i m i n g a s s o c i a t e d w i t h t h e O S L I P i n t e r r u p t . W h e n o n l y o n e a u d i o s e r i a l p o r t ( P o r t A o r P o r t B ) i s s o u r c e d b y t h e D I R o u t p u t , t h e n t h e O S L I P s t a t u s b i t a n d i n t e r r u p t a p p l i e s t o t h a t p o r t . I f b o t h P o r t A a n d P o r t B a r e s o u r c e d b y t h e D I R o u t p u t , t h e n t h e O S L I P s t a t u s b i t a n d i n t e r r u p t a p p l i e s t o P o r t A o n l y .
F i g u r e 9 3 . D I R O u t p u t S l i p / R e p e a t ( O S L I P ) B e h a v i o r
R e g i s t e r 1 6 : R e c e i v e r I n t e r r u p t M a s k R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
M C S C R C M P A R I T Y M V B I T M B P E R R M Q C H G M U N L O C K M Q C R C M R B T I
M C S C R C C h a n n e l S t a t u s C R C E r r o r I n t e r r u p t M a s k
M C S C R C C R C I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M P A R I T Y P a r i t y E r r o r I n t e r r u p t M a s k
M P A R I T Y P a r i t y E r r o r I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M V B I T V a l i d i t y E r r o r I n t e r r u p t M a s k
M V B I T V a l i d i t y E r r o r I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M B P E R R B i p o l a r E n c o d i n g E r r o r I n t e r r u p t M a s k
6 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
M B P E R R B i p o l a r E r r o r I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M Q C H G Q - C h a n n e l S u b - C o d e D a t a C h a n g e I n t e r r u p t M a s k
M Q C H G Q - C h a n n e l D a t a C h a n g e I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M U N L O C K D I R U n l o c k E r r o r I n t e r r u p t M a s k
M U N L O C K D I R U n l o c k I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M Q C R C Q - C h a n n e l S u b - C o d e C R C E r r o r I n t e r r u p t M a s k
M Q C R C Q - C h a n n e l C R C E r r o r I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
M R B T I R e c e i v e r B u f f e r T r a n s f e r I n t e r r u p t M a s k
M R B T I R e c e i v e r B u f f e r T r a n s f e r I n t e r r u p t
0 M a s k e d ( D e f a u l t ) 1 E n a b l e d
R e g i s t e r 1 7 : R e c e i v e r I n t e r r u p t M a s k R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 0 M O S L I P
M O S L I P R e c e i v e r O u t p u t D a t a S l i p E r r o r M a s k
M O S L I P R e c e i v e r O S L I P E r r o r I n t e r r u p t
0 M a s k e d ( D e f a u l t )
1 E n a b l e d
R e g i s t e r 1 8 : R e c e i v e r I n t e r r u p t M o d e R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q C H G M 1 Q C H G M 0 U N L O C K M 1 U N L O C K M 0 Q C R C M 1 Q C R C M 0 R B T I M 1 R B T I M 0
Q C H G M [ 1 : 0 ] Q - C h a n n e l S u b - C o d e D a t a C h a n g e I n t e r r u p t M o d e
Q C H G M 1 Q C H G M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
U N L O C K M [ 1 : 0 ] D I R U n l o c k E r r o r I n t e r r u p t M o d e
U N L O C K M 1 U N L O C K M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
Q C R C M [ 1 : 0 ] Q - C h a n n e l S u b - C o d e C R C E r r o r I n t e r r u p t M o d e
Q C R C M 1 Q C R C M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 6 3
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R B T I M [ 1 : 0 ] R e c e i v e B u f f e r T r a n s f e r I n t e r r u p t M o d e
R B T I M 1 R B T I M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
R e g i s t e r 1 9 : R e c e i v e r I n t e r r u p t M o d e R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
C S C R C M 1 C S C R C M 0 P A R I T Y M 1 P A R I T Y M 0 V B I T M 1 V B I T M 0 B P E R R M 1 B P E R R M 0
C S C R C M [ 1 : 0 ] C h a n n e l S t a t u s C R C E r r o r I n t e r r u p t M o d e
C S C R C M 1 C S C R C M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
P A R I T Y M [ 1 : 0 ] P a r i t y E r r o r I n t e r r u p t M o d e
P A R I T Y M 1 P A R I T Y M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
V B I T M [ 1 : 0 ] V a l i d i t y E r r o r I n t e r r u p t M o d e
V B I T M 1 V B I T M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
B P E R R M [ 1 : 0 ] B i p o l a r E n c o d i n g E r r o r I n t e r r u p t M o d e
B P E R R M 1 B P E R R M 0 I n t e r r u p t A c t i v e S t a t e 0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
R e g i s t e r 1 A : R e c e i v e r I n t e r r u p t M o d e R e g i s t e r 3
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 O S L I P M 1 O S L I P M 0
O S L I P M [ 1 : 0 ] R e c e i v e r O u t p u t D a t a S l i p E r r o r I n t e r r u p t M o d e
O S L I P M 1 O S L I P M 0 I n t e r r u p t A c t i v e S t a t e
0 0 R i s i n g E d g e A c t i v e ( D e f a u l t )
0 1 F a l l i n g E d g e A c t i v e
1 0 L e v e l A c t i v e
1 1 R e s e r v e d
6 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 1 B : G e n e r a l - P u r p o s e O u t p u t 1 ( G P O 1 ) C o n t r o l R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 G P O 1 3 G P O 1 2 G P O 1 1 G P O 1 0
G P O [ 1 3 : 1 0 ] G e n e r a l - P u r p o s e O u t p u t 1 ( G P O 1 ) C o n f i g u r a t i o n
T h e s e b i t s a r e u s e d t o s e t t h e s t a t e o r d a t a s o u r c e f o r t h e g e n e r a l - p u r p o s e d i g i t a l o u t p u t p i n G P O 1 .
G P O 1 3 G P O 1 2 G P O 1 1 G P O 1 0 G P O 1 F u n c t i o n
0 0 0 0 G P O 1 i s F o r c e d L o w ( D e f a u l t )
0 0 0 1 G P O 1 i s F o r c e d H i g h
0 0 1 0 S R C I n t e r r u p t , A c t i v e L o w
0 0 1 1 T r a n s m i t t e r I n t e r r u p t , A c t i v e L o w
0 1 0 0 R e c e i v e r I n t e r r u p t , A c t i v e L o w
0 1 0 1 R e c e i v e r 5 0 / 1 5 μ s P r e - E m p h a s i s , A c t i v e L o w
0 1 1 0 R e c e i v e r N o n - A u d i o D a t a , A c t i v e H i g h
0 1 1 1 R e c e i v e r N o n - V a l i d D a t a , A c t i v e H i g h
1 0 0 0 R e c e i v e r C h a n n e l S t a t u s B i t
1 0 0 1 R e c e i v e r U s e r D a t a B i t
1 0 1 0 R e c e i v e r B l o c k S t a r t C l o c k
R e c e i v e r C O P Y B i t
1 0 1 1 ( 0 = C o p y r i g h t A s s e r t e d , 1 = C o p y r i g h t N o t A s s e r t e d )
R e c e i v e r L - B i t 1 1 0 0
( 0 = F i r s t G e n e r a t i o n o r H i g h e r , 1 = O r i g i n a l )
1 1 0 1 R e c e i v e r P a r i t y E r r o r , A c t i v e H i g h
1 1 1 0 R e c e i v e r I n t e r n a l S y n c C l o c k
1 1 1 1 T r a n s m i t t e r I n t e r n a l S y n c C l o c k
R e g i s t e r 1 C : G e n e r a l - P u r p o s e O u t p u t 2 ( G P O 2 ) C o n t r o l R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 G P O 2 3 G P O 2 2 G P O 2 1 G P O 2 0
G P O [ 2 3 : 2 0 ] G e n e r a l - P u r p o s e O u t p u t 2 ( G P O 2 ) C o n f i g u r a t i o n
T h e s e b i t s a r e u s e d t o s e t t h e s t a t e o r d a t a s o u r c e f o r t h e g e n e r a l - p u r p o s e d i g i t a l o u t p u t p i n G P O 2 .
G P O 2 3 G P O 2 2 G P O 2 1 G P O 2 0 G P O 2 F u n c t i o n
0 0 0 0 G P O 2 i s F o r c e d L o w ( D e f a u l t )
0 0 0 1 G P O 2 i s F o r c e d H i g h
0 0 1 0 S R C I n t e r r u p t , A c t i v e L o w
0 0 1 1 T r a n s m i t t e r I n t e r r u p t , A c t i v e L o w
0 1 0 0 R e c e i v e r I n t e r r u p t , A c t i v e L o w
0 1 0 1 R e c e i v e r 5 0 / 1 5 μ s P r e - E m p h a s i s , A c t i v e L o w
0 1 1 0 R e c e i v e r N o n - A u d i o D a t a , A c t i v e H i g h
0 1 1 1 R e c e i v e r N o n - V a l i d D a t a , A c t i v e H i g h
1 0 0 0 R e c e i v e r C h a n n e l S t a t u s B i t
1 0 0 1 R e c e i v e r U s e r D a t a B i t
1 0 1 0 R e c e i v e r B l o c k S t a r t C l o c k
R e c e i v e r C O P Y B i t
1 0 1 1 ( 0 = C o p y r i g h t A s s e r t e d , 1 = C o p y r i g h t N o t A s s e r t e d )
R e c e i v e r L - B i t 1 1 0 0
( 0 = F i r s t G e n e r a t i o n o r H i g h e r , 1 = O r i g i n a l )
1 1 0 1 R e c e i v e r P a r i t y E r r o r , A c t i v e H i g h
1 1 1 0 R e c e i v e r I n t e r n a l S y n c C l o c k
1 1 1 1 T r a n s m i t t e r I n t e r n a l S y n c C l o c k
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 6 5
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 1 D : G e n e r a l - P u r p o s e O u t p u t 3 ( G P O 3 ) C o n t r o l R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 G P O 3 3 G P O 3 2 G P O 3 1 G P O 3 0
G P O [ 3 3 : 3 0 ] G e n e r a l - P u r p o s e O u t p u t 3 ( G P O 3 ) C o n f i g u r a t i o n
T h e s e b i t s a r e u s e d t o s e t t h e s t a t e o r d a t a s o u r c e f o r t h e g e n e r a l - p u r p o s e d i g i t a l o u t p u t p i n G P O 3 . G P O 3 3 G P O 3 2 G P O 3 1 G P O 3 0 G P O 3 F u n c t i o n
0 0 0 0 G P O 3 i s F o r c e d L o w ( D e f a u l t )
0 0 0 1 G P O 3 i s F o r c e d H i g h
0 0 1 0 S R C I n t e r r u p t , A c t i v e L o w
0 0 1 1 T r a n s m i t t e r I n t e r r u p t , A c t i v e L o w
0 1 0 0 R e c e i v e r I n t e r r u p t , A c t i v e L o w
0 1 0 1 R e c e i v e r 5 0 / 1 5 μ s P r e - E m p h a s i s , A c t i v e L o w
0 1 1 0 R e c e i v e r N o n - A u d i o D a t a , A c t i v e H i g h
0 1 1 1 R e c e i v e r N o n - V a l i d D a t a , A c t i v e H i g h
1 0 0 0 R e c e i v e r C h a n n e l S t a t u s B i t
1 0 0 1 R e c e i v e r U s e r D a t a B i t
1 0 1 0 R e c e i v e r B l o c k S t a r t C l o c k
R e c e i v e r C O P Y B i t 1 0 1 1
( 0 = C o p y r i g h t A s s e r t e d , 1 = C o p y r i g h t N o t A s s e r t e d )
R e c e i v e r L - B i t 1 1 0 0
( 0 = F i r s t G e n e r a t i o n o r H i g h e r , 1 = O r i g i n a l )
1 1 0 1 R e c e i v e r P a r i t y E r r o r , A c t i v e H i g h
1 1 1 0 R e c e i v e r I n t e r n a l S y n c C l o c k
1 1 1 1 T r a n s m i t t e r I n t e r n a l S y n c C l o c k
R e g i s t e r 1 E : G e n e r a l - P u r p o s e O u t p u t 4 ( G P O 4 ) C o n t r o l R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 G P O 4 3 G P O 4 2 G P O 4 1 G P O 4 0
G P O [ 4 3 : 4 0 ] G e n e r a l - P u r p o s e O u t p u t 4 ( G P O 4 ) C o n f i g u r a t i o n
T h e s e b i t s a r e u s e d t o s e t t h e s t a t e o r d a t a s o u r c e f o r t h e g e n e r a l - p u r p o s e d i g i t a l o u t p u t p i n G P O 4 . G P O 4 3 G P O 4 2 G P O 4 1 G P O 4 0 G P O 4 F u n c t i o n
0 0 0 0 G P O 4 i s F o r c e d L o w ( D e f a u l t )
0 0 0 1 G P O 4 i s F o r c e d H i g h
0 0 1 0 S R C I n t e r r u p t , A c t i v e L o w
0 0 1 1 T r a n s m i t t e r I n t e r r u p t , A c t i v e L o w
0 1 0 0 R e c e i v e r I n t e r r u p t , A c t i v e L o w
0 1 0 1 R e c e i v e r 5 0 / 1 5 μ s P r e - E m p h a s i s , A c t i v e L o w
0 1 1 0 R e c e i v e r N o n - A u d i o D a t a , A c t i v e H i g h
0 1 1 1 R e c e i v e r N o n - V a l i d D a t a , A c t i v e H i g h
1 0 0 0 R e c e i v e r C h a n n e l S t a t u s B i t
1 0 0 1 R e c e i v e r U s e r D a t a B i t
1 0 1 0 R e c e i v e r B l o c k S t a r t C l o c k
R e c e i v e r C O P Y B i t 1 0 1 1
( 0 = C o p y r i g h t A s s e r t e d , 1 = C o p y r i g h t N o t A s s e r t e d )
R e c e i v e r L - B i t 1 1 0 0
( 0 = F i r s t G e n e r a t i o n o r H i g h e r , 1 = O r i g i n a l )
1 1 0 1 R e c e i v e r P a r i t y E r r o r , A c t i v e H i g h
1 1 1 0 R e c e i v e r I n t e r n a l S y n c C l o c k
1 1 1 1 T r a n s m i t t e r I n t e r n a l S y n c C l o c k
6 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r s 1 F t h r o u g h 2 8 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r s
R e g i s t e r s 0 x 1 F t h r o u g h 0 x 2 8 c o m p r i s e t h e Q - c h a n n e l s u b - c o d e b u f f e r , w h i c h m a y b e a c c e s s e d f o r a u d i o C D p l a y b a c k . T h e Q - c h a n n e l d a t a p r o v i d e s i n f o r m a t i o n r e g a r d i n g t h e p l a y b a c k s t a t u s f o r t h e c u r r e n t d i s c . T h e b u f f e r d a t a i s d e c o d e d b y t h e D I R b l o c k .
R e g i s t e r 1 F : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 1 ( R e a d - O n l y ) , B i t s [ 7 : 0 ] , C o n t r o l a n d A d d r e s s
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 0 Q 1 Q 2 Q 3 Q 4 Q 5 Q 6 Q 7
R e g i s t e r 2 0 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 2 ( R e a d - O n l y ) , B i t s [ 1 5 : 8 ] , T r a c k
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 8 Q 9 Q 1 0 Q 1 1 Q 1 2 Q 1 3 Q 1 4 Q 1 5
R e g i s t e r 2 1 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 3 ( R e a d - O n l y ) , B i t s [ 2 3 : 1 6 ] , I n d e x
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 1 6 Q 1 7 Q 1 8 Q 1 9 Q 2 0 Q 2 1 Q 2 2 Q 2 3
R e g i s t e r 2 2 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 4 ( R e a d - O n l y ) , B i t s [ 3 1 : 2 4 ] , M i n u t e s
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 2 4 Q 2 5 Q 2 6 Q 2 7 Q 2 8 Q 2 9 Q 3 0 Q 3 1
R e g i s t e r 2 3 : : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 5 ( R e a d - O n l y ) , B i t s [ 3 9 : 3 2 ] , S e c o n d s
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 3 2 Q 3 3 Q 3 4 Q 3 5 Q 3 6 Q 3 7 Q 3 8 Q 3 9
R e g i s t e r 2 4 : : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 6 ( R e a d - O n l y ) , B i t s [ 4 7 : 4 0 ] , F r a m e
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 4 0 Q 4 1 Q 4 2 Q 4 3 Q 4 4 Q 4 5 Q 4 6 Q 4 7
R e g i s t e r 2 5 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 7 ( R e a d - O n l y ) , B i t s [ 5 5 : 4 8 ] , Z e r o
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 4 8 Q 4 9 Q 5 0 Q 5 1 Q 5 2 Q 5 3 Q 5 4 Q 5 5
R e g i s t e r 2 6 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 8 ( R e a d - O n l y ) , B i t s [ 6 3 : 5 6 ] , A M I N
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 5 6 Q 5 7 Q 5 8 Q 5 9 Q 6 0 Q 6 1 Q 6 2 Q 6 3
R e g i s t e r 2 7 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 9 ( R e a d - O n l y ) , B i t s [ 7 1 : 6 4 ] , A S E C
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 6 4 Q 6 5 Q 6 6 Q 6 7 Q 6 8 Q 6 9 Q 7 0 Q 7 1
R e g i s t e r 2 8 : Q - C h a n n e l S u b - C o d e D a t a R e g i s t e r 1 0 ( R e a d - O n l y ) , B i t s [ 7 9 : 7 2 ] , A F R A M E
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
Q 7 2 Q 7 3 Q 7 4 Q 7 5 Q 7 6 Q 7 7 Q 7 8 Q 7 9
R e g i s t e r s 2 9 t h r o u g h 2 C : I E C 6 1 9 3 7 P C / P D B u r s t P r e a m b l e
T h e P C a n d P D b u r s t p r e a m b l e s a r e p a r t o f t h e I E C 6 1 9 3 7 s t a n d a r d f o r t r a n s m i s s i o n o f d a t a r e d u c e d , n o n - P C M a u d i o o v e r a s t a n d a r d t w o - c h a n n e l i n t e r f a c e ( I E C 6 0 9 5 8 ) . E x a m p l e s o f d a t a - r e d u c e d f o r m a t s i n c l u d e D o l b y A C - 3 , D T S , v a r i o u s f l a v o r s o f M P E G a u d i o ( i n c l u d i n g A A C ) , a n d S o n y A T R A C . T h e P A a n d P B p r e a m b l e s p r o v i d e s y n c h r o n i z a t i o n d a t a , a n d a r e f i x e d v a l u e s o f 0 x F 8 7 2 a n d 0 x 4 E 1 F , r e s p e c t i v e l y . T h e P C p r e a m b l e i n d i c a t e s t h e t y p e o f d a t a b e i n g c a r r i e d b y t h e i n t e r f a c e a n d t h e P D p r e a m b l e i n d i c a t e s t h e l e n g t h o f t h e b u r s t , g i v e n a s n u m b e r o f b i t s . R e g i s t e r s 0 x 2 9 t h r o u g h 0 x 2 C c o n t a i n t h e P C a n d P D p r e a m b l e s a s d e c o d e d b y t h e D I R b l o c k .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 6 7
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 2 9 : B u r s t P r e a m b l e P C H i g h - B y t e S t a t u s R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
P C 1 5 P C 1 4 P C 1 3 P C 1 2 P C 1 1 P C 1 0 P C 0 9 P C 0 8
R e g i s t e r 2 A : B u r s t P r e a m b l e P C L o w - B y t e S t a t u s R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
P C 0 7 P C 0 6 P C 0 5 P C 0 4 P C 0 3 P C 0 2 P C 0 1 P C 0 0
P C [ 4 : 0 ] , H e x D a t a T y p e
0 0 N u l l
0 1 D o l b y A C - 3
0 2 R e s e r v e d
0 3 P a u s e
0 4 M P E G - 1 L a y e r 1
0 5 M P E G - 1 L a y e r 2 o r 3 , o r M P E G - 2 W i t h o u t E x t e n s i o n
0 6 M P E G - 2 D a t a W i t h E x t e n s i o n
0 7 M P E G - 2 A A C A D T S
0 8 M P E G - 2 L a y e r 1 L o w S a m p l e R a t e 0 9 M P E G - 2 L a y e r 2 o r 3 L o w S a m p l e R a t e
0 A R e s e r v e d
0 B D T S T y p e 1
0 C D T S T y p e 2
0 D D T S T y p e 3
0 E A T R A C
0 F A T R A C 2 / 3
1 0 - 1 F R e s e r v e d
B i t s P C [ 6 : 5 ] a r e b o t h s e t t o 0 . B i t P C [ 7 ] i s a n E r r o r F l a g , w h e r e : 0 = A v a l i d b u r s t - p a y l o a d ; 1 = B u r s t - p a y l o a d m a y c o n t a i n e r r o r s . B i t s P C [ 1 2 : 8 ] a r e d a t a - t y p e d e p e n d e n t . B i t s P C [ 1 5 : 1 3 ] i n d i c a t e t h e s t r e a m n u m b e r , w h i c h i s s e t t o 0 .
R e g i s t e r 2 B : B u r s t P r e a m b l e P D H i g h - B y t e S t a t u s R e g i s t e r ( R e a d - O n l y ) B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
P D 1 5 P D 1 4 P D 1 3 P D 1 2 P D 1 1 P D 1 0 P D 0 9 P D 0 8
R e g i s t e r 2 C : B u r s t P r e a m b l e P D L o w - B y t e S t a t u s R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
P D 0 7 P D 0 6 P D 0 5 P D 0 4 P D 0 3 P D 0 2 P D 0 1 P D 0 0
6 8 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 2 D : S R C C o n t r o l R e g i s t e r 1
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 T R A C K 0 M U T E S R C C L K 1 S R C C L K 0 S R C I S 1 S R C I S 0
S R C I S [ 1 : 0 ] S R C I n p u t D a t a S o u r c e
T h e s e b i t s s e l e c t t h e i n p u t d a t a s o u r c e f o r t h e S R C .
S R C I S 1 S R C I S 0 I n p u t S o u r c e
0 0 P o r t A ( D e f a u l t )
0 1 P o r t B
1 0 D I R
1 1 R e s e r v e d
S R C C L K [ 1 : 0 ] S R C R e f e r e n c e C l o c k S o u r c e
T h e s e b i t s s e l e c t t h e r e f e r e n c e c l o c k s o u r c e f o r t h e S R C .
S R C C L K 1 S R C C L K 0 R e f e r e n c e C l o c k S o u r c e
0 0 M C L K ( D e f a u l t )
0 1 R X C K I
1 0 R X C K O
1 1 R e s e r v e d
M U T E S R C O u t p u t S o f t M u t e F u n c t i o n
T h i s b i t e n a b l e s o r d i s a b l e s t h e S R C o u t p u t s o f t m u t e f u n c t i o n .
M U T E M u t e F u n c t i o n
0 M u t e D i s a b l e d ( D e f a u l t )
1 M u t e e n a b l e d ; o u t p u t d a t a s e t t o a l l z e r o s .
T R A C K S R C D i g i t a l O u t p u t A t t e n u a t i o n T r a c k i n g
T h i s b i t e n a b l e s o r d i s a b l e s l e f t a n d r i g h t c h a n n e l a t t e n u a t i o n t r a c k i n g .
T R A C K O u t p u t A t t e n u a t i o n T r a c k i n g
T r a c k i n g D i s a b l e d ( D e f a u l t ) 0 T h e L e f t a n d R i g h t c h a n n e l a t t e n u a t i o n i s p r o g r a m m e d s e p a r a t e l y u s i n g r e g i s t e r s 0 x 3 0 a n d 0 x 3 1 ,
r e s p e c t i v e l y .
T r a c k i n g E n a b l e d 1 T h e L e f t c h a n n e l a t t e n u a t i o n s e t t i n g i s a l s o u s e d f o r t h e R i g h t c h a n n e l . T h e R i g h t c h a n n e l t r a c k s t h e L e f t
c h a n n e l s e t t i n g .
R e g i s t e r 2 E : S R C C o n t r o l R e g i s t e r 2
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 A U T O D E M D E M 1 D E M 0 D D N I G R P 1 I G R P 0
I G R P [ 1 : 0 ] S R C I n t e r p o l a t i o n F i l t e r G r o u p D e l a y
T h e s e b i t s s e l e c t t h e i n t e r p o l a t i o n f i l t e r g r o u p d e l a y b y c o n f i g u r i n g t h e n u m b e r o f s a m p l e s w h i c h a r e p r e - b u f f e r e d p r i o r t o t h e r e - s a m p l e r f u n c t i o n .
I G R P 1 I G R P 0 N u m b e r o f S a m p l e s P r e - B u f f e r e d
0 0 6 4 S a m p l e s ( D e f a u l t )
0 1 3 2 S a m p l e s
1 0 1 6 S a m p l e s
1 1 8 S a m p l e s
D D N S R C D e c i m a t i o n F i l t e r / D i r e c t D o w n - S a m p l i n g F u n c t i o n
T h i s b i t s e l e c t s t h e m o d e o f t h e d e c i m a t i o n f u n c t i o n , e i t h e r t r u e d e c i m a t i o n f i l t e r o r d i r e c t d o w n - s a m p l i n g w i t h o u t f i l t e r i n g .
D D N D e c i m a t i o n F u n c t i o n
0 D e c i m a t i o n F i l t e r ( D e f a u l t )
1 D i r e c t D o w n S a m p l i n g
N o t e : D i r e c t d o w n - s a m p l i n g s h o u l d o n l y b e u s e d w h e n t h e o u t p u t s a m p l i n g r a t e i s h i g h e r t h a n t h e i n p u t s a m p l i n g r a t e . W h e n t h e o u t p u t s a m p l i n g r a t e i s e q u a l t o o r l o w e r t h a n t h e i n p u t s a m p l i n g r a t e , t h e D e c i m a t i o n F i l t e r m u s t b e u s e d i n o r d e r t o a v o i d a l i a s i n g .
D E M [ 1 : 0 ] D i g i t a l D e - E m p h a s i s F i l t e r , M a n u a l C o n f i g u r a t i o n
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 6 9
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h e s e b i t s a r e u t i l i z e d t o e n a b l e o r d i s a b l e t h e d i g i t a l d e - e m p h a s i s f i l t e r m a n u a l l y . T h e d e - e m p h a s i s f i l t e r i s i n t e n d e d t o p r o c e s s 5 0 / 1 5 μ s p r e - e m p h a s i z e d a u d i o m a t e r i a l a t t h e f o l l o w i n g i n p u t s a m p l i n g r a t e s :
D E M 1 D E M 0 D e - E m p h a s i s F i l t e r F u n c t i o n
0 0 D e - E m p h a s i s D i s a b l e d ( D e f a u l t )
0 1 D e - E m p h a s i s E n a b l e d f o r f S = 4 8 k H z
1 0 D e - E m p h a s i s E n a b l e d f o r f S = 4 4 . 1 k H z
1 1 D e - E m p h a s i s E n a b l e d f o r f S
= 3 2 k H z
N o t e : W h e n t h e A U T O D E M b i t i s s e t t o 1 , t h e s e t t i n g o f t h e D E M 0 a n d D E M 1 b i t s a r e i g n o r e d .
A U T O D E M A u t o m a t i c D e - E m p h a s i s C o n f i g u r a t i o n
T h i s b i t e n a b l e s o r d i s a b l e s t h e a u t o m a t i c d e - e m p h a s i s f u n c t i o n , w h i c h m o n i t o r s t h e c h a n n e l s t a t u s b i t s f r o m t h e D I R f u n c t i o n b l o c k a n d d e t e r m i n e s w h e t h e r d e - e m p h a s i s i s e n a b l e d a n d f o r w h i c h s a m p l i n g f r e q u e n c y . T h i s f u n c t i o n i s v a l i d f o r o n l y 5 0 / 1 5 μ s p r e - e m p h a s i z e d d a t a a n d o n e o f t h e t h r e e s u p p o r t e d s a m p l i n g r a t e s ( 3 2 k H z , 4 4 . 1 k H z , o r 4 8 k H z ) .
A U T O D E M A u t o m a t i c D e - E m p h a s i s F u n c t i o n
0 D i s a b l e d ( D e f a u l t )
1 E n a b l e d
R e g i s t e r 2 F : S R C C o n t r o l R e g i s t e r 3
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
O W L 1 O W L 0 0 0 0 0 0 0
O W L [ 1 : 0 ] S R C O u t p u t W o r d L e n g t h
T h e s e b i t s s e l e c t t h e w o r d l e n g t h f o r t h e S R C o u t p u t d a t a . T h e w o r d l e n g t h r e d u c t i o n i s p e r f o r m e d b y u t i l i z i n g t r i a n g u l a r P D F d i t h e r i n g .
O W L 1 O W L 0 S R C O u t p u t W o r d L e n g t h
0 0 2 4 B i t s ( D e f a u l t )
0 1 2 0 B i t s
1 0 1 8 B i t s
1 1 1 6 B i t s
N o t e : W h e n t h e S R C i s s e l e c t e d a s t h e o u t p u t d a t a s o u r c e f o r P o r t A o r B a n d t h e d a t a f o r m a t f o r t h e p o r t i s s e t t o R i g h t - J u s t i f i e d , t h e p r o p e r w o r d l e n g t h m u s t b e s e l e c t e d i n t h e P o r t A o r B c o n t r o l r e g i s t e r s s u c h t h a t i t m a t c h e s t h e c o r r e s p o n d i n g S R C o u t p u t d a t a w o r d l e n g t h s e t b y t h e O W L 0 a n d O W L 1 b i t s .
R e g i s t e r 3 0 : S R C C o n t r o l R e g i s t e r 4
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
A L 7 A L 6 A L 5 A L 4 A L 3 A L 2 A L 1 A L 0
T h e s e b i t s a r e u t i l i z e d t o c o n f i g u r e t h e S R C d i g i t a l o u t p u t a t t e n u a t i o n f o r t h e L e f t C h a n n e l w h e n t h e T R A C K b i t i n r e g i s t e r 0 x 2 D i s s e t t o 0 . T h e a t t e n u a t i o n s e t t i n g f o r t h e L e f t c h a n n e l a l s o a p p l i e s t o t h e R i g h t c h a n n e l w h e n T R A C K b i t i n r e g i s t e r 0 x 2 D i s s e t t o 1 . O u t p u t A t t e n u a t i o n ( d B ) = – N × 0 . 5 , w h e r e N = A L [ 7 : 0 ] D E C .
R e g i s t e r 3 1 : S R C C o n t r o l R e g i s t e r 5
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
A R 7 A R 6 A R 5 A R 4 A R 3 A R 2 A R 1 A R 0
T h e s e b i t s a r e u t i l i z e d t o c o n f i g u r e t h e S R C d i g i t a l o u t p u t a t t e n u a t i o n f o r t h e R i g h t C h a n n e l w h e n t h e T R A C K b i t i n r e g i s t e r 0 x 2 D i s s e t t o 0 . O u t p u t A t t e n u a t i o n ( d B ) = – N × 0 . 5 , w h e r e N = A R [ 7 : 0 ] D E C .
R e g i s t e r 3 2 : S R C R a t i o R e a d b a c k R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
S R I 4 S R I 3 S R I 2 S R I 1 S R I 0 S R F 1 0 S R F 9 S R F 8
7 0 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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C H A N N E L S T A T U S A N D U S E R D A T A B U F F E R M A P S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
R e g i s t e r 3 3 : S R C R a t i o R e a d b a c k R e g i s t e r ( R e a d - O n l y )
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
S R F 7 S R F 6 S R F 5 S R F 4 S R F 3 S R F 2 S R F 1 S R F 0
S R I [ 4 : 0 ] I n t e g e r P a r t o f t h e I n p u t - t o - O u t p u t S a m p l i n g R a t i o
S R F [ 1 0 : 0 ] F r a c t i o n a l P a r t o f t h e I n p u t - t o - O u t p u t S a m p l i n g R a t i o
I n o r d e r t o p r o p e r l y r e a d b a c k t h e r a t i o , t h e s e r e g i s t e r s m u s t b e r e a d b a c k i n s e q u e n c e , s t a r t i n g w i t h r e g i s t e r 0 x 3 2 .
R e g i s t e r 7 F : P a g e S e l e c t i o n R e g i s t e r
B i t 7 ( M S B ) B i t 6 B i t 5 B i t 4 B i t 3 B i t 2 B i t 1 B i t 0 ( L S B )
0 0 0 0 0 0 P A G E 1 P A G E 0
P A G E [ 1 : 0 ] P a g e S e l e c t i o n
T h e s e b i t s a r e u t i l i z e d t o s e l e c t o n e o f t h r e e r e g i s t e r p a g e s f o r w r i t e a n d / o r r e a d a c c e s s v i a t h e S P I o r I 2 C s e r i a l h o s t i n t e r f a c e . T h e P a g e S e l e c t i o n R e g i s t e r i s p r e s e n t o n e v e r y r e g i s t e r p a g e a t a d d r e s s 0 x 7 F , a l l o w i n g m o v e m e n t b e t w e e n p a g e s a s n e c e s s a r y .
P A G E 1 P A G E 0 R e g i s t e r / B u f f e r P a g e S e l e c t i o n
0 0 P a g e 0 , C o n t r o l a n d S t a t u s R e g i s t e r s ( D e f a u l t )
0 1 P a g e 1 , D I R C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r s
1 0 P a g e 2 , D I T C h a n n e l S t a t u s a n d U s e r D a t a B u f f e r s
1 1 P a g e 3 , R e s e r v e d
T a b l e 5 t h r o u g h T a b l e 8 s h o w t h e b u f f e r m a p s f o r t h e D I R a n d D I T c h a n n e l s t a t u s a n d u s e r d a t a b u f f e r s .
F o r T a b l e 5 , t h e c h a n n e l s t a t u s b y t e d e f i n i t i o n s a r e d e p e n d e n t o n t h e t r a n s m i s s i o n m o d e , e i t h e r P r o f e s s i o n a l o r C o n s u m e r . B i t 0 o f B y t e 0 d e f i n e s t h e t r a n s m i s s i o n m o d e , 0 f o r C o n s u m e r m o d e , a n d 1 f o r P r o f e s s i o n a l m o d e . T h i s i s a p p l i c a b l e f o r T a b l e 5 a n d T a b l e 6 .
F o r T a b l e 7 , t h e c h a n n e l s t a t u s b y t e d e f i n i t i o n s a r e d e p e n d e n t o n t h e t r a n s m i s s i o n m o d e , e i t h e r P r o f e s s i o n a l o r C o n s u m e r . B i t 0 o f B y t e 0 d e f i n e s t h e t r a n s m i s s i o n m o d e , 0 f o r C o n s u m e r m o d e , a n d 1 f o r P r o f e s s i o n a l m o d e . I n P r o f e s s i o n a l m o d e , B y t e 2 3 f o r e a c h c h a n n e l i s r e s e r v e d f o r C R C d a t a , w h i c h i s a u t o m a t i c a l l y c a l c u l a t e d a n d e n c o d e d b y t h e D I T . T h e r e i s n o n e e d t o p r o g r a m B y t e 2 3 f o r e i t h e r c h a n n e l i n P r o f e s s i o n a l m o d e .
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 7 1
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T a b l e 5 . D I R C h a n n e l S t a t u s D a t a B u f f e r M a p ( R e g i s t e r P a g e 1 )
A D D R E S S ( H e x ) C H A N N E L B Y T E B I T 0 ( M S B ) B I T 1 B I T 2 B I T 3 B I T 4 B I T 5 B I T 6 B I T 7
0 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
3 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
7 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
8 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
9 2 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
A 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
B 2 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
C 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
D 2 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
E 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
F 2 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 0 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 1 2 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 3 2 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 4 1 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 5 2 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 6 1 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 7 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 8 1 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 9 2 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 A 1 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 B 2 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 C 1 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 1 D 2 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 E 1 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 F 2 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 0 1 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 1 2 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 2 1 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 3 2 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 4 1 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 5 2 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 6 1 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 7 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 8 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 9 2 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 A 1 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 B 2 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 C 1 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 D 2 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 E 1 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 F 2 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
7 2 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T a b l e 6 . D I R U s e r D a t a B u f f e r M a p ( R e g i s t e r P a g e 1 )
A D D R E S S ( H e x ) C H A N N E L B Y T E B I T 0 ( M S B ) B I T 1 B I T 2 B I T 3 B I T 4 B I T 5 B I T 6 B I T 7
4 0 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 3 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 4 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 5 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 6 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 7 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 8 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 9 2 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 A 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 B 2 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 C 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 D 2 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 E 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 F 2 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 0 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 1 2 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 3 2 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 4 1 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 5 2 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 6 1 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 7 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 8 1 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 9 2 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 A 1 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 B 2 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 5 C 1 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 D 2 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 E 1 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 F 2 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 0 1 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 1 2 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 2 1 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 3 2 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 4 1 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 5 2 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 6 1 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 7 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 8 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 9 2 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 A 1 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 B 2 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 C 1 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 D 2 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 E 1 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 F 2 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 7 3
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T a b l e 7 . D I T C h a n n e l S t a t u s D a t a B u f f e r M a p ( R e g i s t e r P a g e 2 )
A D D R E S S ( H e x ) C H A N N E L B Y T E B I T 0 ( M S B ) B I T 1 B I T 2 B I T 3 B I T 4 B I T 5 B I T 6 B I T 7
0 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
3 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
7 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
8 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
9 2 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
A 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
B 2 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
C 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
D 2 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
E 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
F 2 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 0 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 1 2 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 3 2 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 4 1 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 5 2 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 6 1 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 7 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 8 1 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 9 2 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 A 1 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 B 2 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 1 C 1 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 D 2 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 E 1 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
1 F 2 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 0 1 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 1 2 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 2 1 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 3 2 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 4 1 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 5 2 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 6 1 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 7 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 8 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 9 2 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 A 1 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 B 2 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 C 1 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 D 2 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 E 1 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
2 F 2 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
7 4 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
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S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T a b l e 8 . D I T U s e r D a t a B u f f e r M a p ( R e g i s t e r P a g e 2 )
A D D R E S S ( H e x ) C H A N N E L B Y T E B I T 0 ( M S B ) B I T 1 B I T 2 B I T 3 B I T 4 B I T 5 B I T 6 B I T 7
4 0 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 3 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 4 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 5 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 6 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 7 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 8 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 9 2 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 A 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 B 2 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 C 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 D 2 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 E 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
4 F 2 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 0 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 1 2 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 3 2 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 4 1 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 5 2 1 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 6 1 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 7 2 1 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 8 1 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 9 2 1 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 A 1 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 B 2 1 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 5 C 1 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 D 2 1 4 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 E 1 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
5 F 2 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 0 1 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 1 2 1 6 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 2 1 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 3 2 1 7 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 4 1 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 5 2 1 8 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 6 1 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 7 2 1 9 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 8 1 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 9 2 2 0 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 A 1 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 B 2 2 1 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 C 1 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 D 2 2 2 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 E 1 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
6 F 2 2 3 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7
C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d S u b m i t D o c u m e n t a t i o n F e e d b a c k 7 5
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R E F E R E N C E D O C U M E N T S
S R C 4 3 9 2
S B F S 0 2 9 C – D E C E M B E R 2 0 0 5 – R E V I S E D S E P T E M B E R 2 0 0 7
T h r o u g h o u t t h i s d a t a s h e e t , v a r i o u s s t a n d a r d s a n d d o c u m e n t s a r e r e p e a t e d l y c i t e d a s r e f e r e n c e s . S o u r c e s f o r t h e s e d o c u m e n t s a r e l i s t e d h e r e s o t h a t t h e r e a d e r m a y o b t a i n t h e d o c u m e n t s f o r f u r t h e r s t u d y .
A u d i o E n g i n e e r i n g S o c i e t y ( A E S ) s t a n d a r d s d o c u m e n t s , i n c l u d i n g t h e A E S 3 , A E S 1 1 , A E S 1 8 , a n d r e l a t e d
s p e c i f i c a t i o n s a r e a v a i l a b l e f r o m t h e A E S w e b s i t e : h t t p : / / w w w . a e s . o r g .
I n t e r n a t i o n a l E l e c t r o t e c h n i c a l C o m m i t t e e ( I E C ) s t a n d a r d s , i n c l u d i n g t h e I E C 6 0 9 5 8 a n d I E C 6 1 9 3 7 a r e a v a i l a b l e f r o m t h e I E C w e b s i t e : h t t p : / / w w w . i e c . c h ; o r t h e A N S I w e b s i t e : h t t p : / / w w w . a n s i . o r g .
T h e E I A J C P - 1 2 1 2 ( f o r m e r l y C P - 1 2 0 1 ) s t a n d a r d i s a v a i l a b l e f r o m t h e J a p a n e s e E l e c t r o n i c s a n d I n f o r m a t i o n T e c h n o l o g i e s I n d u s t r i e s A s s o c i a t i o n ( J E I T A ) : h t t p : / / w w w . j e i t a . o r . j p / e n g l i s h .
T h e P h i l i p s I 2 C b u s s p e c i f i c a t i o n i s a v a i l a b l e f r o m P h i l i p s : h t t p : / / w w w . p h i l i p s . c o m . T h e v e r s i o n u t i l i z e d a s a r e f e r e n c e f o r t h i s p r o d u c t i s V e r s i o n 2 . 1 , p u b l i s h e d i n J a n u a r y 2 0 0 0 .
S e v e r a l p a p e r s r e g a r d i n g b a l a n c e d a n d u n b a l a n c e d t r a n s f o r m e r - c o u p l e d d i g i t a l a u d i o i n t e r f a c e s h a v e b e e n p u b l i s h e d a n d p r e s e n t e d a t p a s t A E S c o n v e n t i o n s b y J o n D . P a u l o f S c i e n t i f i c C o n v e r s i o n , I n c . T h e s e p a p e r s a r e a v a i l a b l e f o r d o w n l o a d f r o m : h t t p : / / w w w . s c i e n t i f i c o n v e r s i o n . c o m .
R e v i s i o n H i s t o r y
N O T E : P a g e n u m b e r s f o r p r e v i o u s r e v i s i o n s m a y d i f f e r f r o m p a g e n u m b e r s i n t h e c u r r e n t v e r s i o n .
D A T E R E V P A G E S E C T I O N D E S C R I P T I O N
— — C h a n g e d f r o m P r o d u c t P r e v i e w t o P r o d u c t i o n D a t a .
1 2 T y p i c a l C h a r a c t e r i s t i c s C o r r e c t e d s p e l l i n g o f T y p i c a l .
P r o d u c t O v e r v i e w , 3 5 A s y n c h r o n o u s S a m p l e R a t e F i g u r e 7 4 : C o r r e c t e d a l i g n m e n t o f t e x t .
C o n v e r t e r O p e r a t i o n
P r o d u c t O v e r v i e w , F i g u r e 7 9 : C h a n g e d r e f e r e n c e t o m u l t i p l e S R C 4 3 9 2 d e v i c e s .
4 0 I n t e r r u p t O u t p u t C o r r e c t e d s p e l l i n g e r r o r .
A p p l i c a t i o n s I n f o r m a t i o n , 4 5 F i g u r e 8 5 , F i g u r e 8 6 : C o r r e c t e d s p e l l i n g e r r o r s . 4 / 0 6 B R e c e i v e r I n p u t I n t e r f a c i n g
A p p l i c a t i o n s I n f o r m a t i o n , F i g u r e 8 9 , F i g u r e 9 0 : C o r r e c t e d s p e l l i n g e r r o r s . 4 7 T r a n s m i t t e r O u t p u t F i g u r e 9 0 : R e n a m e d O p t i c a l R e c e i v e r b l o c k t o O p t i c a l
I n t e r f a c i n g T r a n s m i t t e r .
C h a n g e d w o r d i n g i n p a r a g r a p h d e s c r i b i n g C o n t r o l R e g i s t e r s A p p l i c a t i o n s I n f o r m a t i o n ,
4 9 t o a c c u r a t e l y e x p l a i n w h i c h r e g i s t e r a d d r e s s e s a r e r e s e r v e d C o n t r o l R e g i s t e r s
f o r f a c t o r y o r f u t u r e u s e .
C o r r e c t e d p u n c t u a t i o n e r r o r s : A E S 3 - e n c o d e d , G l o b a l —
t r a n s f o r m e r - c o u p l e d .
C h a n g e s f r o m R e v i s i o n B ( A p r i l 2 0 0 6 ) t o R e v i s i o n C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P a g e
• A d d e d U . S . p a t e n t n u m b e r t o f r o n t p a g e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
7 6 S u b m i t D o c u m e n t a t i o n F e e d b a c k C o p y r i g h t © 2 0 0 5 – 2 0 0 7 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d
P r o d u c t F o l d e r L i n k ( s ) : S R C 4 3 9 2
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PACKAGING INFORMATION
Orderable Device Status (1) PackageType
PackageDrawing
Pins PackageQty
Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
SRC4392IPFB ACTIVE TQFP PFB 48 250 Green (RoHS &
no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
SRC4392IPFBG4 ACTIVE TQFP PFB 48 250 Green (RoHS &no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
SRC4392IPFBR ACTIVE TQFP PFB 48 1000 Green (RoHS &no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
SRC4392IPFBRG4 ACTIVE TQFP PFB 48 1000 Green (RoHS &no Sb/Br)
CU NIPDAU Level-2-260C-1 YEAR
(1) The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part ina new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.
(2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.TBD: The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirementsfor all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be solderedat high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die andpackage, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHScompatible) as defined above.Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flameretardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it isprovided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to theaccuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to takereasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis onincoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limitedinformation may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TIto Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com 28-May-2009
Addendum-Page 1
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TAPE AND REEL INFORMATION
*All dimensions are nominal
Device PackageType
PackageDrawing
Pins SPQ ReelDiameter
(mm)
ReelWidth
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1(mm)
W(mm) Q
SRC4392IPFBR TQFP PFB 48 1000 330.0 16.4 9.6 9.6 1.5 12.0 16.0
PACKAGE MATERIALS INFORMATION
www.ti.com 11-Mar-2008
Pack Materials-Page 1
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*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
SRC4392IPFBR TQFP PFB 48 1000 346.0 346.0 33.0
PACKAGE MATERIALS INFORMATION
www.ti.com 11-Mar-2008
Pack Materials-Page 2
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MECHANICAL DATA
MTQF019A – JANUARY 1995 – REVISED JANUARY 1998
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PFB (S-PQFP-G48) PLASTIC QUAD FLATPACK
4073176/ B 10/96
Gage Plane
0,13 NOM
0,25
0,45
0,75
Seating Plane
0,05 MIN
0,17
0,27
24
25
13
12
SQ
36
37
7,20
6,80
48
1
5,50 TYP
SQ8,80
9,20
1,05
0,95
1,20 MAX0,08
0,50 M0,08
0° –7°
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-026
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I M P O R T A N T N O T I C E
T e x a s I n s t r u m e n t s I n c o r p o r a t e d a n d i t s s u b s i d i a r i e s ( T I ) r e s e r v e t h e r i g h t t o m a k e c o r r e c t i o n s , m o d i f i c a t i o n s , e n h a n c e m e n t s , i m p r o v e m e n t s , a n d o t h e r c h a n g e s t o i t s p r o d u c t s a n d s e r v i c e s a t a n y t i m e a n d t o d i s c o n t i n u e a n y p r o d u c t o r s e r v i c e w i t h o u t n o t i c e . C u s t o m e r s s h o u l d o b t a i n t h e l a t e s t r e l e v a n t i n f o r m a t i o n b e f o r e p l a c i n g o r d e r s a n d s h o u l d v e r i f y t h a t s u c h i n f o r m a t i o n i s c u r r e n t a n d c o m p l e t e . A l l p r o d u c t s a r e s o l d s u b j e c t t o T I ’ s t e r m s a n d c o n d i t i o n s o f s a l e s u p p l i e d a t t h e t i m e o f o r d e r a c k n o w l e d g m e n t .
T I w a r r a n t s p e r f o r m a n c e o f i t s h a r d w a r e p r o d u c t s t o t h e s p e c i f i c a t i o n s a p p l i c a b l e a t t h e t i m e o f s a l e i n a c c o r d a n c e w i t h T I ’ s s t a n d a r d
w a r r a n t y . T e s t i n g a n d o t h e r q u a l i t y c o n t r o l t e c h n i q u e s a r e u s e d t o t h e e x t e n t T I d e e m s n e c e s s a r y t o s u p p o r t t h i s w a r r a n t y . E x c e p t w h e r e m a n d a t e d b y g o v e r n m e n t r e q u i r e m e n t s , t e s t i n g o f a l l p a r a m e t e r s o f e a c h p r o d u c t i s n o t n e c e s s a r i l y p e r f o r m e d .
T I a s s u m e s n o l i a b i l i t y f o r a p p l i c a t i o n s a s s i s t a n c e o r c u s t o m e r p r o d u c t d e s i g n . C u s t o m e r s a r e r e s p o n s i b l e f o r t h e i r p r o d u c t s a n d a p p l i c a t i o n s u s i n g T I c o m p o n e n t s . T o m i n i m i z e t h e r i s k s a s s o c i a t e d w i t h c u s t o m e r p r o d u c t s a n d a p p l i c a t i o n s , c u s t o m e r s s h o u l d p r o v i d e a d e q u a t e d e s i g n a n d o p e r a t i n g s a f e g u a r d s .
T I d o e s n o t w a r r a n t o r r e p r e s e n t t h a t a n y l i c e n s e , e i t h e r e x p r e s s o r i m p l i e d , i s g r a n t e d u n d e r a n y T I p a t e n t r i g h t , c o p y r i g h t , m a s k w o r k r i g h t , o r o t h e r T I i n t e l l e c t u a l p r o p e r t y r i g h t r e l a t i n g t o a n y c o m b i n a t i o n , m a c h i n e , o r p r o c e s s i n w h i c h T I p r o d u c t s o r s e r v i c e s a r e u s e d . I n f o r m a t i o n p u b l i s h e d b y T I r e g a r d i n g t h i r d - p a r t y p r o d u c t s o r s e r v i c e s d o e s n o t c o n s t i t u t e a l i c e n s e f r o m T I t o u s e s u c h p r o d u c t s o r s e r v i c e s o r a w a r r a n t y o r e n d o r s e m e n t t h e r e o f . U s e o f s u c h i n f o r m a t i o n m a y r e q u i r e a l i c e n s e f r o m a t h i r d p a r t y u n d e r t h e p a t e n t s o r o t h e r i n t e l l e c t u a l p r o p e r t y o f t h e t h i r d p a r t y , o r a l i c e n s e f r o m T I u n d e r t h e p a t e n t s o r o t h e r i n t e l l e c t u a l p r o p e r t y o f T I .
R e p r o d u c t i o n o f T I i n f o r m a t i o n i n T I d a t a b o o k s o r d a t a s h e e t s i s p e r m i s s i b l e o n l y i f r e p r o d u c t i o n i s w i t h o u t a l t e r a t i o n a n d i s a c c o m p a n i e d b y a l l a s s o c i a t e d w a r r a n t i e s , c o n d i t i o n s , l i m i t a t i o n s , a n d n o t i c e s . R e p r o d u c t i o n o f t h i s i n f o r m a t i o n w i t h a l t e r a t i o n i s a n u n f a i r a n d d e c e p t i v e b u s i n e s s p r a c t i c e . T I i s n o t r e s p o n s i b l e o r l i a b l e f o r s u c h a l t e r e d d o c u m e n t a t i o n . I n f o r m a t i o n o f t h i r d p a r t i e s m a y b e s u b j e c t t o a d d i t i o n a l r e s t r i c t i o n s .
R e s a l e o f T I p r o d u c t s o r s e r v i c e s w i t h s t a t e m e n t s d i f f e r e n t f r o m o r b e y o n d t h e p a r a m e t e r s s t a t e d b y T I f o r t h a t p r o d u c t o r s e r v i c e v o i d s a l l
e x p r e s s a n d a n y i m p l i e d w a r r a n t i e s f o r t h e a s s o c i a t e d T I p r o d u c t o r s e r v i c e a n d i s a n u n f a i r a n d d e c e p t i v e b u s i n e s s p r a c t i c e . T I i s n o t r e s p o n s i b l e o r l i a b l e f o r a n y s u c h s t a t e m e n t s .
T I p r o d u c t s a r e n o t a u t h o r i z e d f o r u s e i n s a f e t y - c r i t i c a l a p p l i c a t i o n s ( s u c h a s l i f e s u p p o r t ) w h e r e a f a i l u r e o f t h e T I p r o d u c t w o u l d r e a s o n a b l y b e e x p e c t e d t o c a u s e s e v e r e p e r s o n a l i n j u r y o r d e a t h , u n l e s s o f f i c e r s o f t h e p a r t i e s h a v e e x e c u t e d a n a g r e e m e n t s p e c i f i c a l l y g o v e r n i n g s u c h u s e . B u y e r s r e p r e s e n t t h a t t h e y h a v e a l l n e c e s s a r y e x p e r t i s e i n t h e s a f e t y a n d r e g u l a t o r y r a m i f i c a t i o n s o f t h e i r a p p l i c a t i o n s , a n d a c k n o w l e d g e a n d a g r e e t h a t t h e y a r e s o l e l y r e s p o n s i b l e f o r a l l l e g a l , r e g u l a t o r y a n d s a f e t y - r e l a t e d r e q u i r e m e n t s c o n c e r n i n g t h e i r p r o d u c t s a n d a n y u s e o f T I p r o d u c t s i n s u c h s a f e t y - c r i t i c a l a p p l i c a t i o n s , n o t w i t h s t a n d i n g a n y a p p l i c a t i o n s - r e l a t e d i n f o r m a t i o n o r s u p p o r t t h a t m a y b e p r o v i d e d b y T I . F u r t h e r , B u y e r s m u s t f u l l y i n d e m n i f y T I a n d i t s r e p r e s e n t a t i v e s a g a i n s t a n y d a m a g e s a r i s i n g o u t o f t h e u s e o f T I p r o d u c t s i n s u c h s a f e t y - c r i t i c a l a p p l i c a t i o n s .
T I p r o d u c t s a r e n e i t h e r d e s i g n e d n o r i n t e n d e d f o r u s e i n m i l i t a r y / a e r o s p a c e a p p l i c a t i o n s o r e n v i r o n m e n t s u n l e s s t h e T I p r o d u c t s a r e s p e c i f i c a l l y d e s i g n a t e d b y T I a s m i l i t a r y - g r a d e o r " e n h a n c e d p l a s t i c . " O n l y p r o d u c t s d e s i g n a t e d b y T I a s m i l i t a r y - g r a d e m e e t m i l i t a r y s p e c i f i c a t i o n s . B u y e r s a c k n o w l e d g e a n d a g r e e t h a t a n y s u c h u s e o f T I p r o d u c t s w h i c h T I h a s n o t d e s i g n a t e d a s m i l i t a r y - g r a d e i s s o l e l y a t t h e B u y e r ' s r i s k , a n d t h a t t h e y a r e s o l e l y r e s p o n s i b l e f o r c o m p l i a n c e w i t h a l l l e g a l a n d r e g u l a t o r y r e q u i r e m e n t s i n c o n n e c t i o n w i t h s u c h u s e .
T I p r o d u c t s a r e n e i t h e r d e s i g n e d n o r i n t e n d e d f o r u s e i n a u t o m o t i v e a p p l i c a t i o n s o r e n v i r o n m e n t s u n l e s s t h e s p e c i f i c T I p r o d u c t s a r e d e s i g n a t e d b y T I a s c o m p l i a n t w i t h I S O / T S 1 6 9 4 9 r e q u i r e m e n t s . B u y e r s a c k n o w l e d g e a n d a g r e e t h a t , i f t h e y u s e a n y n o n - d e s i g n a t e d p r o d u c t s i n a u t o m o t i v e a p p l i c a t i o n s , T I w i l l n o t b e r e s p o n s i b l e f o r a n y f a i l u r e t o m e e t s u c h r e q u i r e m e n t s .
F o l l o w i n g a r e U R L s w h e r e y o u c a n o b t a i n i n f o r m a t i o n o n o t h e r T e x a s I n s t r u m e n t s p r o d u c t s a n d a p p l i c a t i o n s o l u t i o n s :
P r o d u c t s A p p l i c a t i o n s A m p l i f i e r s a m p l i f i e r . t i . c o m A u d i o w w w . t i . c o m / a u d i o D a t a C o n v e r t e r s d a t a c o n v e r t e r . t i . c o m A u t o m o t i v e w w w . t i . c o m / a u t o m o t i v e D L P ® P r o d u c t s w w w . d l p . c o m B r o a d b a n d w w w . t i . c o m / b r o a d b a n d D S P d s p . t i . c o m D i g i t a l C o n t r o l w w w . t i . c o m / d i g i t a l c o n t r o l C l o c k s a n d T i m e r s w w w . t i . c o m / c l o c k s M e d i c a l w w w . t i . c o m / m e d i c a l I n t e r f a c e i n t e r f a c e . t i . c o m M i l i t a r y w w w . t i . c o m / m i l i t a r y L o g i c l o g i c . t i . c o m O p t i c a l N e t w o r k i n g w w w . t i . c o m / o p t i c a l n e t w o r k P o w e r M g m t p o w e r . t i . c o m S e c u r i t y w w w . t i . c o m / s e c u r i t y M i c r o c o n t r o l l e r s m i c r o c o n t r o l l e r . t i . c o m T e l e p h o n y w w w . t i . c o m / t e l e p h o n y R F I D w w w . t i - r f i d . c o m V i d e o & I m a g i n g w w w . t i . c o m / v i d e o R F / I F a n d Z i g B e e ® S o l u t i o n s w w w . t i . c o m / l p r f W i r e l e s s w w w . t i . c o m / w i r e l e s s
M a i l i n g A d d r e s s : T e x a s I n s t r u m e n t s P o s t O f f i c e B o x 6 5 5 3 0 3 D a l l a s T e x a s 7 5 2 6 5