4 x 100W Bluetooth 5.1 DSP Audio Amplifier Board – TSA8814
TSA8814 is a 4x100W Stereo Bluetooth 5 audio amplifier board. It has perfect class-D architecture(Based on TPA3221), and each channel has a maximum 100W power output. All channels are capable of outputting nominal power simultaneously and continuously. Any DC12V-30V power supply can power this board. It can be used to drive any 2Ω~8Ω passive speakers. Bluetooth output I2S signal to the DSP chip and aux-in signal can be directly connected to the DSP chip.
It’s a 2-channel amplifier board. You can pair it with a mobile phone or a computer (etc.) Power the amplifier board. Use your phone or PC (etc.) to search for a new Bluetooth device. The module will appear as “TSA8814.” You don’t need a PIN. Pair it, and then you can play music.
The highlight point is the ADAU1701 DSP chip on board. 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, and the 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. TSA8814 has Apt-X and TWS support. Therefore, users can stream audio to 2 paired amplifier boards wirelessly. If you change the Bluetooth firmware to Party mode, you can have many TSA8814 boards paired and working together. TSA8814 can remember the pairing info. You don’t need to pair them each time after you turn the amplifier board on. This makes building a wireless surround sound system possible using the TSA8814.
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:
The user can load a new DSP program by using the USBi JTAG Sigma DSP programmer
The default DSP program can automatically select the line-in/Bluetooth audio and output it to the amplifier chips. The Bluetooth audio signal has a higher priority.
Two boards work in TWS mode. You can also build a wireless subwoofer system.
- S1 – 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.
Specifications:
Unless otherwise noted, specifications are typical @ +25℃, powered by 24V DC. Specifications are subject to change without notice.
Parameter | Condition | Min | Typ | Max |
Supply Voltage (VDC) | – | 10 | 24 | 30 |
Power output per channel | RL= 3Ω, 10% THD+N | 112W | ||
RL= 4Ω, 10% THD+N | 105W | |||
RL= 3Ω, 1% THD+N | 100W | |||
RL= 4Ω, 10% THD+N | 88W | |||
200W channel: RL= 2Ω, 1% THD+N | 208W | |||
THD+N | 1W | 0.02% | ||
SNR | A-weighted,Gain= 18 dB | 108dB | ||
DNR | A-weighted,Gain= 18 dB | 109dB | ||
Minimum Load Impedance | 3Ω | 4Ω | ||
Gain | 18dB | 24dB | 34dB | |
Efficiency | 100W @ 4Ohm | 90% | ||
Input Impedance | 18dB | 48KΩ | ||
24dB | 24KΩ | |||
30dB | 12KΩ | |||
34dB | 7.7KΩ |
Features:
- Size: 13.5cm x 9.2cm x 3.5cm
- aptX, aptX Low Latency, SBC, and AAC
- ADAU DSP integrated
- Bluetooth 5.1
- I2S Sampling Rate: 48KHz
- Working voltage: DC12V-30V
- TWS firmware: aptX, aptX-HD, SBC, and AAC
- Party mode firmware: SBC
- TWS or Multi-point connection
- Up to 100 boards can be linked together. (Party firmware)
- Effective transmission distance: 80-100m
- Smart cooling system
- Over/under voltage protection
- Over current protection
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