24-Bit, 192- kHz Sampling, Advanced Segment, Audio Stereo DAC

  • Published on
    03-Jan-2017

  • View
    213

  • Download
    1

Embed Size (px)

Transcript

  • SLES080C MAY 2003 REVISED NOVEMBER 2006

    FEATURES

    24-Bit Resolution

    Analog Performance: Dynamic Range: 132 dB (9 V RMS, Mono)

    129 dB (4.5 V RMS, Stereo)127 dB (2 V RMS, Stereo)

    THD+N: 0.0004%

    Differential Current Output: 7.8 mA p-p

    8 Oversampling Digital Filter: Stop-Band Attenuation: 130 dB Pass-Band Ripple: 0.00001 dB

    Sampling Frequency: 10 kHz to 200 kHz

    System Clock: 128, 192, 256, 384, 512, or768 fS With Autodetect

    Accepts 16- and 24-Bit Audio Data

    PCM Data Formats: Standard, I2S, andLeft-Justified

    Optional Interface Available to ExternalDigital Filter or DSP

    Digital De-Emphasis

    Digital Filter Rolloff: Sharp or Slow

    Soft Mute

    Zero Flag

    Dual-Supply Operation: 5-V Analog, 3.3-V Digital

    5-V Tolerant Digital Inputs

    Small 28-Lead SSOP Package

    APPLICATIONS A/V Receivers

    DVD Players

    Musical Instruments

    HDTV Receivers

    Car Audio Systems

    Digital Multitrack Recorders

    Other Applications Requiring 24-Bit Audio

    DESCRIPTION

    The PCM1794 is a monolithic CMOS integrated circuit thatincludes stereo digital-to-analog converters and supportcircuitry in a small 28-lead SSOP package. The dataconverters use TIs advanced segment DAC architectureto achieve excellent dynamic performance and improvedtolerance to clock jitter. The PCM1794 provides balancedcurrent outputs, allowing the user to optimize analogperformance externally. Sampling rates up to 200 kHz aresupported.

    This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriateprecautions. Failure to observe proper handling and installation procedures can cause damage.

    ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible todamage because very small parametric changes could cause the device not to meet its published specifications.

    Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instrumentssemiconductor products and disclaimers thereto appears at the end of this data sheet.

    ! "#$%&' ()*% !%$'(!$%

    Copyright 2006, Texas Instruments Incorporated +!&'*$+! +% #(!$ *% & ,-.+#*$+! "*$(/ "#$%#!&' $ %,(#+&+#*$+!% ,( $0( $('% & ()*% !%$'(!$% %$*!"*" **!$1/"#$+! ,#(%%+!2 "(% !$ !(#(%%*+.1 +!#."( $(%$+!2 & *.. ,**'($(%/

  • SLES080C MAY 2003 REVISED NOVEMBER 2006

    www.ti.com

    2

    ORDERING INFORMATION

    PRODUCT PACKAGE PACKAGE CODEOPERATION

    TEMPERATURERANGE

    PACKAGEMARKING

    ORDERINGNUMBER

    TRANSPORTMEDIA

    PCM1794DB 28-lead SSOP 28DB 25C to 85C PCM1794PCM1794DB Tube

    PCM1794DB 28-lead SSOP 28DB 25C to 85C PCM1794PCM1794DBR Tape and reel

    ABSOLUTE MAXIMUM RATINGSover operating free-air temperature range unless otherwise noted(1)

    PCM1794

    Supply voltageVCC1, VCC2L, VCC2R 0.3 V to 6.5 VSupply voltageVDD 0.3 V to 4 V

    Supply voltage differences: VCC1, VCC2L, VCC2R 0.1 VGround voltage differences: AGND1, AGND2, AGND3L, AGND3R, DGND 0.1 V

    Digital input voltageLRCK, DATA, BCK, SCK, FMT1, FMT0, MONO, CHSL, DEM, MUTE, RST, 0.3 V to 6.5 V

    Digital input voltageZERO 0.3 V to (VDD + 0.3 V) < 4 V

    Analog input voltage 0.3 V to (VCC + 0.3 V) < 6.5 V

    Input current (any pins except supplies) 10 mAAmbient temperature under bias 40C to 125CStorage temperature 55C to 150CJunction temperature 150CLead temperature (soldering) 260C, 5 sPackage temperature (IR reflow, peak) 250C

    (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is notimplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

    ELECTRICAL CHARACTERISTICSall specifications at TA = 25C, VCC1 = VCC2L = VCC2R = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unlessotherwise noted

    PARAMETER TEST CONDITIONSPCM1794DB

    UNITPARAMETER TEST CONDITIONSMIN TYP MAX

    UNIT

    RESOLUTION 24 Bits

    DATA FORMAT

    Audio data interface format Standard, I2S, left justified

    Audio data bit length 16-, 24-bit selectable

    Audio data format MSB first, 2s complement

    fS Sampling frequency 10 200 kHz

    System clock frequency 128, 192, 256, 384, 512, 768 fSDIGITAL INPUT/OUTPUT

    Logic family TTL compatible

    VIH Input logic level2

    VDCVIL

    Input logic level0.8

    VDC

    IIH Input logic currentVIN = VDD 10 A

    IILInput logic current

    VIN = 0 V 10A

    VOHOutput logic level

    IOH = 2 mA 2.4VDC

    VOLOutput logic level

    IOL = 2 mA 0.4VDC

  • SLES080C MAY 2003 REVISED NOVEMBER 2006

    www.ti.com

    3

    ELECTRICAL CHARACTERISTICS (Continued)all specifications at TA = 25C, VCC1 = VCC2L = VCC2R = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unlessotherwise noted

    PARAMETER TEST CONDITIONSPCM1794DB

    UNITPARAMETER TEST CONDITIONSMIN TYP MAX

    UNIT

    DYNAMIC PERFORMANCE (2-V RMS OUTPUT) (1)(2)

    fS = 44.1 kHz 0.0004% 0.0008%

    THD+N at VOUT = 0 dB fS = 96 kHz 0.0008%THD+N at VOUT = 0 dB

    fS = 192 kHz 0.0015%

    EIAJ, A-weighted, fS = 44.1 kHz 123 127

    Dynamic range EIAJ, A-weighted, fS = 96 kHz 127 dBDynamic range

    EIAJ, A-weighted, fS = 192 kHz 127

    dB

    EIAJ, A-weighted, fS = 44.1 kHz 123 127

    Signal-to-noise ratio EIAJ, A-weighted, fS = 96 kHz 127 dBSignal-to-noise ratio

    EIAJ, A-weighted, fS = 192 kHz 127

    dB

    fS = 44.1 kHz 120 123

    Channel separation fS = 96 kHz 122 dBChannel separation

    fS = 192 kHz 120

    dB

    Level linearity error VOUT = 120 dB 1 dBDYNAMIC PERFORMANCE (4.5-V RMS Output) (1)(3)

    fS = 44.1 kHz 0.0004%

    THD+N at VOUT = 0 dB fS = 96 kHz 0.0008%THD+N at VOUT = 0 dB

    fS = 192 kHz 0.0015%

    EIAJ, A-weighted, fS = 44.1 kHz 129

    Dynamic range EIAJ, A-weighted, fS = 96 kHz 129 dBDynamic range

    EIAJ, A-weighted, fS = 192 kHz 129

    dB

    EIAJ, A-weighted, fS = 44.1 kHz 129

    Signal-to-noise ratio EIAJ, A-weighted, fS = 96 kHz 129 dBSignal-to-noise ratio

    EIAJ, A-weighted, fS = 192 kHz 129

    dB

    fS = 44.1 kHz 124

    Channel separation fS = 96 kHz 123 dBChannel separation

    fS = 192 kHz 121

    dB

    DYNAMIC PERFORMANCE (MONO MODE) (1)(3)

    fS = 44.1 kHz 0.0004%

    THD+N at VOUT = 0 dB fS = 96 kHz 0.0008%THD+N at VOUT = 0 dB

    fS = 192 kHz 0.0015%

    EIAJ, A-weighted, fS = 44.1 kHz 132

    Dynamic range EIAJ, A-weighted, fS = 96 kHz 132 dBDynamic range

    EIAJ, A-weighted, fS = 192 kHz 132

    dB

    EIAJ, A-weighted, fS = 44.1 kHz 132

    Signal-to-noise ratio EIAJ, A-weighted, fS = 96 kHz 132 dBSignal-to-noise ratio

    EIAJ, A-weighted, fS = 192 kHz 132

    dB

    (1) Filter condition:THD+N: 20-Hz HPF, 20-kHz apogee LPFDynamic range: 20-Hz HPF, 20-kHz AES17 LPF, A-weightedSignal-to-noise ratio: 20-Hz HPF, 20-kHz AES17 LPF, A-weightedChannel separation: 20-Hz HPF, 20-kHz AES17 LPFAnalog performance specifications are measured using the System Two Cascade audio measurement system by Audio Precision in theaveraging mode.

    (2) Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 24.(3) Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 25.

    Audio Precision and System Two are trademarks of Audio Precision, Inc.Other trademarks are the property of their respective owners.

  • SLES080C MAY 2003 REVISED NOVEMBER 2006

    www.ti.com

    4

    ELECTRICAL CHARACTERISTICS (Continued)all specifications at TA = 25C, VCC1 = VCC2L = VCC2R = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unlessotherwise noted

    PARAMETER TEST CONDITIONSPCM1794DB

    UNITPARAMETER TEST CONDITIONSMIN TYP MAX

    UNIT

    ANALOG OUTPUT

    Gain error 6 2 6 % of FSRGain mismatch, channel-to-channel 3 0.5 3 % of FSRBipolar zero error At BPZ 2 0.5 2 % of FSROutput current Full scale (0 dB) 7.8 mA p-p

    Center current At BPZ 6.2 mA

    DIGITAL FILTER PERFORMANCE

    De-emphasis error 0.004 dBFILTER CHARACTERISTICS-1: SHARP ROLLOFF

    Pass band0.00001 dB 0.454 fSPass band3 dB 0.49 fS

    Stop band 0.546 fSPass-band ripple 0.00001 dBStop-band attenuation Stop band = 0.546 fS 130 dB

    Delay time 55/fS s

    FILTER CHARACTERISTICS-2: SLOW ROLLOFF

    Pass band0.04 dB 0.254 fSPass band3 dB 0.46 fS

    Stop band 0.732 fSPass-band ripple 0.001 dBStop-band attenuation Stop band = 0.732 fS 100 dB

    Delay time 18/fS s

    POWER SUPPLY REQUIREMENTS

    VDD 3 3.3 3.6 VDC

    VCC1 Voltage rangeVCC2L

    Voltage range4.75 5 5.25 VDC

    VCC2R

    4.75 5 5.25 VDC

    (1)

    fS = 44.1 kHz 12 15

    IDD

    (1)

    fS = 96 kHz 23 mAIDD

    Supply current (1)fS = 192 kHz 45

    mA

    Supply current (1)fS = 44.1 kHz 33 40

    ICC fS = 96 kHz 35 mAICCfS = 192 kHz 37

    mA

    (1)fS = 44.1 kHz 205 250

    Power dissipation (1) fS = 96 kHz 250 mWPower dissipation (1)

    fS = 192 kHz 335

    mW

    TEMPERATURE RANGE

    Operation temperature 25 85 CJA Thermal resistance 28-pin SSOP 100 C/W

    (1) Input is BPZ data.

  • SLES080C MAY 2003 REVISED NOVEMBER 2006

    www.ti.com

    5

    PIN ASSIGNMENTS

    123

    4 56789

    1011121314

    282726

    252423222120

    1918171615

    MONOCHSLDEM

    LRCKDATABCKSCK

    DGNDVDD

Recommended

View more >