2 x 50W 2 Channels DSP Audio Amplifier Board - TSA7802A

TSA7802A is a 2x50W 2 channels DSP amplifier board, It's a very flexible DSP/DAC/Amplifier combination board. It has perfect class-D structure (Based on TPA3116D2) and 2 channels have 50W power output.

All the channels are capable of outputting nominal power simultaneously and continuously. This board can be powered by any DC12V-24V power supply. It can be used to drive any 4Ω or 8Ω passive speakers. The main DSP chip on this amplifier board is ADAU1701. It has a default DSP program loaded. Customers can adjust the gain, bass, midrange and treble in the DSP program.

It also has a debug port for Sigima Studio, and user can program this module with our USBi programmer to get more functions that include equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, etc.

TSA7802A is the base board of TSA7802B. You can also plug a AudioB I2S module to the board, then it becomes a Bluetooth audio amplifier.

External Buttons port: Not support this function on TSA7802A.

Volume control POT port: There is an Ext POT port on the board. You can connect external POTs (5K~20K) to control the Main volume,treble,middle and Bass. You need to update the DSP program first. DSP program (with external POTs). This is our POT kit

ADC0- Main volume. ADC1- Bass volume. ADC2- Middle volume. ADC3- treble volume.

DSP programming port: User can load a new DSP program by using the USBi JTAG Sigma DSP programmer

Specification: Specifications typical @ +25℃, Powered by 30V DC, unless otherwise noted. Specifications subject to change without notice.

Parameter Condition Min Typ Max

Supply Voltage (VDC)

- 12 21 24

Power output per channel RL= 4Ω, 10% THD+N

50W

RL= 8Ω, 10% THD+N

30W

RL= 4Ω, 10% THD+N 18W

THD+N @4Ω, 1W, 1KHz

0.03%

Bandwidth @ ±3dB @4Ω 20Hz - 20KHz

Input Impedance - - 22KΩ -

Minimum Load Impedance

3.2Ω

Gain

18dB 24dB 34dB

Efficiency 50W @ 4Ohm 87% - 92%

Features:

Size: 10.5cm x 7.5cm x 2.2cm 2 channels Working voltage: DC12V-24V Over/under voltage protection Over current protection Over temperature protection

Applications:

Personal computer Background music system Musical instrument amplifiers Home DIY Car audio

Documents:

How to change the BT name How to enable BT password How to change Bluetooth audio gains How to pair and set TWS mode ADI SigmaStudio software How to write DSP program to DSP board Default DSP program

DSP program (with external POTs)