2 x 50W + 100W 2.1 Channels Bluetooth+DSP Amplifier Board – TSA7800B(Apt-X)
TSA7800B 2x50W + 100W 2.1 channels Bluetooth+DSP amplifier board with an AudioB I2S Bluetooth module that supports Apt-X. TSA7800B is a very flexible DSP/DAC/Amplifier combination board. It has perfect class-D architecture(Based on TPA3116D2); two channels have a 50W power output, and another one has a 100W power output. All the channels are capable of outputting nominal Power simultaneously and continuously.
It’s a 2.1 channels amplifier board. That channel for the subwoofer is 100W mono output (The user can change the DSP program to let it becomes a right or left channel). You can pair it with a mobile phone or a computer etc.. Power the amplifier board. Then, use your phone or PC to search for a new Bluetooth device. The module will appear as “TSA7800B”. You don’t need a PIN, pair it, and then you can play music.
The highlight point is the ADAU1701 DSP chip on board. Users can set each channel’s audio tone separately. Apt-X and TWS supported. Therefore, Users can stream audio to 2 paired amplifier boards simultaneously wirelessly.
External Buttons port: Three buttons on the board can control the audio volume, play/pause, etc… You can connect external buttons easily by using this button’s control port.
Pins define:(Check the board backside silkscreen):
- P/P: Play the pause button
- VOL+: volume increase and forward button
- VOL-: volume decrease and rewind button
Aux in enabling port: The default DSP program mixes the RCA/Bluetooth audio and output to the amplifier chips. If you want, select the RCA/Bluetooth manually by a switch. In addition, you can connect an external switch to this port and load a different DSP program.
POT port: The user can connect an external 10K potentiometer to control the audio volume.
DSP programming port: Users can load a new DSP program by using the USB JTAG Sigma DSP programmer
The onboard default DSP program will mix the RCA&Bluetooth audio and output to the speakers. However, users can also change the DSP program to make the audio source selectable by an external switch.
- S1 – Long press 3s into pairing mode. Long press 6s to clear the pairing info.
- S1+S2 – Long press 1s into TWS slave mode.
- S1+S3 – Long press 1s into TWS master mode.
- S2+S3 – Long press 1s disconnect TWS connection.
- Size: 13.5cm x 9.2cm x 3.4cm
- aptX, aptX Low Latency, SBC, and AAC
- Bluetooth 5.0
- I2S Sampling Rate: 48KHz
- 2.1 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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