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Summit 30W Amplifier with SMPS January 15, 2013 Page 1 of 4 Version 1.4
Summit Amplifier Reference Design Bridged 30-Watt Amplifier with Integrated SMPS
HARDWARE PRODUCT BRIEF
Amplifier Description The Summit 30-watt amplifier is a reference design intended to facilitate the development of wireless speakers for home theater systems. It is designed specifically for consumer electronics products that integrate Summit Wireless technology, and is optimized for bookshelf speakers and high-quality performance. The amplifier includes a universal switching-mode power supply (SMPS) that supports 100 to 240VAC, at 50 or 60Hz, and can be applied as a single channel, 30-watt mono amplifier, or as a two-channel stereo amplifier that supplies 15 watts per channel.
Amplifier Features: • Integrated SMPS, supporting 100-240VAC @ 50/60Hz • Easily configurable for 2x15W or 1x30W operation (<0.3% THD +N%) • Integrated Ultrasonic Circuitry for surround speakers (SpeakerFinder™ and MyZone™ support) • Three Status LEDs – System Heartbeat, Network Link, Amp Error/Sleep • Designed to meet UL Safety Specifications • Designed to pass FCC Part 15 Emissions Requirements • Designed to pass DFS Requirements when used with Summit Receiver Module • WiSA compliant
The amplifier is designed for use with the Summit Wireless Receiver Module (SKU 444-2213), and supports WiSA interoperability. Working samples that are fully configured for a surround speaker application, with an aluminum back plate and a Summit Receiver Module, are available. The back plate includes a power cord connector (IEC60320-C7), a service port for firmware updates, a Reset button, and a window for the three-LED status indicator array.
The reference design amplifier is based on the Texas Instruments TAS5727 amplifier. It can be easily configured to provide mono output, supporting 1x30W output to a 4Ω or 6 Ω load, or stereo output, supporting 2x15W output to 8Ω loads. The crossover network and speaker equalization is performed completely digitally in the Summit Wireless Receiver ASIC, eliminating the need for passive components.
Reference Design Contents: A complete Reference Design is available from Summit Wireless. Reference Design contents include:
• Schematics in Adobe PDF or Altium formats. • Bill of Material in Microsoft Excel format • Gerber files (4 layer board) • 3D CAD files (.STEP) files for aluminum back plate and modules • Amplifier configuration firmware (for PIC processor)
Summit 30W Amplifier with SMPS January 15, 2013 Page 2 of 4 Version 1.4
Summit Amplifier Reference Design Bridged 30-Watt Amplifier with Integrated SMPS
SWS996
SMPS
Left Transducer
Circuit
Right Transducer
Circuit
Status LED’s/Associate
button
Service port
cableUART_RX
UART_TX
3.3V
GND
3.3V
1.5V
N_AMP_ERR
MCLK
N_HEARTBEAT
N_LINK
UART_TX
UART_RX
100/240VAC
SCLK
LRCLK
SDO 0
SDO 1
SDO 2
SDO 3
PING0
DET0
PING1
DET1
SUMMIT RX MODULE
SMPS & AMP
ULTRASONIC MODULE
TWEETER
WOOFER
*only required on center speaker
N_RESET
N_MUTE
AMPLIFIER
N_SLEEP
Microprocessor
J12
J4
J11
J1
P1
J2
Summit Speaker System Block Diagram
Amplifier Assembly Diagram (Reference Design)
Mounting Holes
Mounting Holes
3.5mm
Pin 1 Pin 24
Summit 30W Amplifier with SMPS January 15, 2013 Page 3 of 4 Version 1.4
Summit Amplifier Reference Design Bridged 30-Watt Amplifier with Integrated SMPS
Performance Characteristics PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Power Output Per Speaker PO Bridged mode continuous - 4 or 6-ohm load 30 W
Stereo mode continuous – 8-ohm load 15 W
Total Harmonic Distortion + Noise THD+N% Bridged mode continuous - 4 or 6-ohm load - 27W 0.3% %
Stereo mode continuous – 8-ohm load - 15W 0.3% %
Audio Sample Rate 48 KHz
Crosstalk Stereo mode - 8 ohm load - 1W - 20 to 20KHz -50 dB
Signal-to-Noise Ratio SNR 100 dB
Noise Floor -100 dBV Line Voltage Input 100 240 VAC Line Voltage Frequency 50 60 Hz Operating Temperature Ta 0 70 °C
Audio Characteristics: The amplifier reference design exhibits the following operational audio characteristics.
BTL (stereo) THD+N% vs. output power BTL Frequency Response
BTL Noise Floor
Summit Semiconductor, LLC. 22867 NW Bennett Street, Suite 200 Hillsboro, OR 97124 Phone 503 615-7700 Fax 503 615-4232 Email [email protected]
© 2012, 2013, Summit Semiconductor LCC. Specifications are subject to change. All brand and product names are trademarks of their respective companies. File: Summit_30Watt_ Amp_PB_v1.4
Summit Amplifier Reference Design Bridged 30-Watt Amplifier with Integrated SMPS
Critical Dimensions
69.85mm(2.75in)
120.65 mm
(4.75 in)
Amp View (amplifier dimensions) Side View (component height) Back View (back plate dimensions)
Ordering Information (Sample) SUMMIT SKU PART DESCRIPTION
444-2218 Summit 30W 2-Way Class D Amplifier w/ Backplate and Summit Rx Module. 444-2221 Summit 30W 2-Way Class D Amplifier Center w/ Backplate and Summit Rx Module 444-2219 Summit Ultrasonic Transducer Unit with cable and indexed connector
Note: 444-2221 includes a secondary ultrasonic circuit board
39 mm (1.535 in)
27 mm
(1.063 in)
