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Mid Power(30-300W per channel)

2 x 30 Watt Digital Input Class D Audio Amplifier Board & DAC - TAS5756[706]

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SKUAA-AB32255

29.90

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Volume Control Rotary Potentiometer Board for TAS5756 / TAS5754 Amplifier Board

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Description

This stereo mid-power digital audio amplifier board is capable of delivering 30W output power per channel into a 4Ohm load based on Class D topology and Texas Instruments TAS5756 chip, featuring high efficiency up to 90% and high sound quality with low distortion and low noise level. AA-AB32255 supports 3-wire I2S input, suitable for connecting with Raspberry Pi in DIY applications. Compact size, easy installation and mid power output makes this audio amplifier board suitable for home audio, car audio and demanding industrial applications. Besides amplifier board, AA-AB32255 can work as a high performance DAC. A DC10V – 24V power supply is required.

Digital Input and High Quality Audio Performance

By means of dedicated PCB layout design and engineers’ attentive debugging, this mid-power audio amplifier board features such high audio performance that you can get pure enjoy of the music, whose SNR reaches 102dB and THD+N performs well as 0.005% @ 4Ohm, 1W, 1kHz. This amplifier board supports I2S digital input and supports high resolution playback up to 192kHz/24bit so customers can enjoy music same as originally recorded.

High Performance DAC

In addition to speaker output, AA-AB32255 provides analog output without amplification, which means you can use this board as a high performance DAC. One board, multiple applications, which is highly cost-effective.

Supporting Power Battery

This audio amplifier can be powered by batteries, greatly improving the portability of the audio system. Thanks to the low power consumption, it features long playback time with WONDOM battery board (BCPB Series). It is suggested to use BCPB3 / BCPB4 to power this digital audio amplifier.

External Volume control

This mid-power amplifier board supports external volume control rotary potentiometer board (AA-AB41152). You can adjust volume through the potentiometer board. Please note that specialized program is needed to be burned for use with TAS5754 / TAS5756. Therefore, the potentiometers in WONDOM VC series can not be used with this audio amplifier board.

High Reliability and Long Service Time

Excellent heat dissipation eliminates the requirement of an extra heatsink and increases its reliability. Full protection circuit, like over temperature protection, overcurrent protection, over / under voltage protection, is equipped on this board for high reliability and long service time.

Easy for Installation

Four screw holes provided make this amplifier board easy for installation and quick for integration in any cabinet. Thanks to the pre-mounted industrial terminal interfaces, all you need to do is to plug in cables for connection, without any demand of soldering, which is swift and convenient. This board is in 3.6’’ x 2.7’’ compact size, which can be easily integrated into any audio projects without occupation of too much space.

Package Includes

1pc AA-AB32255



Video for introduction: video link





  • StyleBoards
  • Number Of Channel(s)2
  • Output Power30
  • Size3.6 x 2.7 inches (91.44mm x 68.58mm)
  • ChipsetOthers
  • Heat DissipationNo Heat Sink & FAN
  • Supported Parallel Bridge Tied Load ModeNO
  • inputI2S,
  • Power Voltage10V-24V
  • Output Power
  • 30W@ 4Ohm 19V DC THD+N 10%
  • High Performance DAC
  • I2S Input Supported
  • 3-Wire Digital Input
  • (No MCLK Required)
  • 44.1kHz-48kHz Sample Rate
  • 16Bit/24Bit Resolution
  • Net Weight: 58g/ 0.13 lbs (±10%)
  • Size: 3.6 x 2.7 x 0.72 inches
SpecifiSpecifications typical @+25℃, powered by 24V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter(s)ConditionsMin.Typ. Max.Unit (s)
Power SupplyJ2/J4 (Power Adapter/Power Supply)101924VDC
J3 (Battery, powered by WONDOM BCPB Series)14-21VDC
Idle PowerSD Floating0.710.750.81W
Maximum Current 30W @ 4Ohm -3-A
Efficiency30W @ 4Ohm (Only the amplifier)-90-%
Minimum Load Impedance--4-Ω
Switching FrequencySD Floating, 8 x Fs, LRCK = 48kHz-384-kHz
SpecifiSpecifications typical @+25℃, powered by 24V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter(s)ConditionsMin.Typ.Max.Unit(s)
GainCan be adjusted to -100dB with WONDOM Volume Control Board- 28-dB
Output Power@4Ω THD+N 10%- 30-W
Bandwidth @ ±3dB@4Ω20-20k   Hz
THD@4Ω, 1W, 1kHz-0.05-%
Output Noise LevelA-weighting       - 80-µV
SNRTHD+N <1%, A-weighting-102-dB

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QUESTIONS & ANSWERS

Rob.J

29 May 2020

The Rotary Potentiometer Board( AA-AB41152) mentioned in the datasheet doesn't seem to be available anywhere. Is it a future product? Can I buy it? If not, can you explain the protocol so I can make my own? I'm guessing it is an I2C slave, which responds to requests from the amplifier for a volume level. What is the range of volume values?

Hi, Rob. Thank you for your interest in our products. We have launched the rotary potentiometer board for you. Here is the link: http://store.sure-electronics.com/product/AA-AB41152 Any problem, please feel free to contact us.

Rob.J

29 May 2020

The Rotary Potentiometer Board( AA-AB41152) mentioned in the datasheet doesn't seem to be available anywhere. Is it a future product? Can I buy it? If not, can you explain the protocol so I can make my own? I'm guessing it is an I2C slave, which responds to requests from the amplifier for a volume level. What is the range of volume values?

Hi, Rob. Thank you for your interest in our products. We have launched the rotary potentiometer board for you. Here is the link: http://store.sure-electronics.com/product/AA-AB41152 Any problem, please feel free to contact us.

Greg.Valvo

13 Dec 2019

My two previous emails requesting technical information about this product have gone unanswered. Why have you not replied?

Hi, Greg. Thank you for your email. Please kindly be noted that the I2C BUS of J5 is not connected with the I2C BUS of TAS5756 since the J5 on the AA-AB32255 is specially designed for use with WONDOM Rotary Potentiometer Board. In addition, the device shown in the datasheet is WONDOM Rotary Potentiometer Board mentioned before. Wish this could help you.

Greg.Valvo

22 Nov 2019

Thank you for your answers to my previous questions. Regarding sample rate -- is the board hardware itself capable of higher rates? Meaning -- is it only a matter of proper settings in the TAS5756's registers? Or, would a hardware change be required to achieve higher rates? Thanks. I'm happy to buy the board, looks very nice.

Hi, Greg. Thank you for your interest. Please kindly be noticed that the hardware of 2 x 30 Watt Digital Input Class D Audio Amplifier Board & DAC - TAS5756 does not support higher sample rate. Some modification would be required. If you have any problem, please feel free to contact us with store@sure-electronics.com.

Greg.Valvo

22 Nov 2019

The TAS5756 chip supports sampling up to 192KHz. Why is this board limited to 44.1kHz-48kHz?

Hi, Greg. Thank you for your interest in our products. The default setting of the sample rate of this board is 44.1kHz to 48kHz. If you have requirements on higher sample rate, please contact us for further discussion about the customization. Wish this could help you.

Greg.Valvo

22 Nov 2019

Does this board work "out of the box" without having to download one of TI's "HybridFlows" configurations or use their "PurePath Console" tool?

Hi, Greg. Thank you for your interest in our products. There is no need to download any software for use. When you connect it with I2S input, it will work as an audio amplifier. Wish this could help you.

Eric.Miner

12 May 2019

Any info how to wire this to the Raspberry Pi and aux in, and what wires you would need?

Hi, Eric. Please connect the pin for I2S output of RaspBerry Pi with the pin for I2S input of AA-AB32255 correspondingly. The AA-AB32255 is designed for I2S input. If you have any other question, please feel free to contact us.

Eric.Miner

12 May 2019

Does it work with JAB 1 or 2?

Hi, Eric. The AA-AB32255 cannot be used with JAB1 or JAB2. Please feel free to contact us if you have any other question.

Copyright 2020 @ Sure Electronics Co., Ltd.

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