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

2 x 50W 2 Channels DSP Audio Amplifier Board - TSA7802A
2 x 50W 2 Channels DSP Audio Amplifier Board - TSA7802A 2 x 50W 2 Channels DSP Audio Amplifier Board - TSA7802A 2 x 50W 2 Channels DSP Audio Amplifier Board - TSA7802A
Brand: Tinysine
Product Code: G64799B952232E
Reward Points: 0
Availability: 500
Price: $38.00

5 or more $35.00
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TSA7802A is a 2x50W 2 channels DSP amplifier board, It's a very flexible DSP/DAC/Amplifier combination board. It has perfect class-D architecture(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 have a debug port for Sigima Studio, User can program this module with our USBi programmer to get more functions which includes 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 have an Ext POT port on the board. You can connect external POTs (5K~20K) to control the Main volume,treble,middle,Bass. You need update the DSP program first. DSP program (with external POTs). This is our POT kit

  1. ADC0- Main volume.
  2. ADC1- Bass volume.
  3. ADC2- Middle volume.
  4. ADC3- treble volume.



DSP programming port:

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




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




Gain   18dB 24dB 34dB
Efficiency 50W @ 4Ohm 87% - 92%



  • 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



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



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