2 x 50W 2 Channels DSP Audio Amplifier Board – TSA7802A
TSA7802A is a 2x50W 2-channel DSP amplifier board and a very flexible DSP/DAC/Amplifier combination board. It has perfect class-D architecture(Based on TPA3116D2), and two channels have a 50W power output. All the channels are capable of outputting nominal power simultaneously and continuously. Any DC12V-24V power supply can power this board. 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 Sigma Studio. The User can program this module with our USBi programmer to get more functions, including equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, etc. TSA7802A is the baseboard of TSA7802B. You can also plug an AudioB I2S module into the board, and it becomes a Bluetooth audio amplifier.
External Buttons port: This function does not support 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: Users can load a new DSP program by using the USBi JTAG Sigma DSP program
Specification: Specifications typical @ +25℃, Powered by 30V DC, unless otherwise noted. Specifications are 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 @Â 4Ohm | 87% | – | 92% |
Features:
- Size: 10.5cm x 7.5cm x 2.2cm
- Two 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
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