1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7551B Apt-X
1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7551B Apt-X - Image 2
1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7551B Apt-X - Image 3
1 x 200W Bluetooth+DSP Mono Audio Amplifier Board - TSA7551B Apt-X - Image 4

1 x 200W Bluetooth+DSP Mono Audio Amplifier Board – TSA7551B Apt-X

$62.65

TSA7551B is a 200W Bluetooth+DSP mono amplifier board with an AudioB plus Bluetooth module supporting Apt-X. TSA7551B is a very flexible DSP/Amplifier combination board. It has perfect class-D architecture(Based on TDA7498E) with a mono channel capable of a 200W power output. Any DC14V-39V power supply can power this board. It can be used to drive any 3Ω,4Ω, or 8Ω passive speakers. TSA7551B has a smart cooling system, but the fan is not working normally to reduce the noise. Only start when the board overheats.


Ships From: China
Supplier: TinySine SKU: TSA7551B Apt-X Categories: , , , , Tags: , , , , , , , , More From:

1 x 200W Bluetooth+DSP Mono Audio Amplifier Board – TSA7551B (Apt-X)

TSA7551B is a 200W Bluetooth+DSP mono amplifier board with an AudioB plus Bluetooth module supporting Apt-X. TSA7551B is a very flexible DSP/Amplifier combination board. It has perfect class-D architecture(Based on TDA7498E) with a mono channel capable of a 200W power output. Any DC14V-39V power supply can power this board. It can be used to drive any 3Ω,4Ω, or 8Ω passive speakers. TSA7551B has a smart cooling system, but the fan is not working as usual to reduce the noise. Only start when the board overheats.

It’s a one-channel amplifier board. The only channels are 200W mono output(Bluetooth stereo right and left channel audio mixed in the DSP program). 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 “TSA7551B.” You don’t need a PIN. Pair it, and then you can play music.

TSA7551B has an 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, including equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, etc.

TSA7551B is Apt-X and TWS supported. Therefore, Users can wirelessly stream audio to 2 paired amplifier boards simultaneously.

Functions TSA7551 TSA7550
Bluetooth output signal Digital -I2S Analog
Bluetooth version BT5.1 BT5.0
Bluetooth USB programming Yes No
External POT numbers 4 1
External LED port 1 0
SPDIFBee support Yes No
TOSLINKBee support Yes No
Multipoint Bluetooth extension No Yes

Comparison of differences between TSA7551 and TSA7550

External Button port: Three buttons on the board can control the audio volume, play/pause, etc. These button control ports allow you to connect external buttons easily.

Pins definition: (Check the board backside silkscreen):

  • P/P: Play pause button
  • VOL+: volume increase and forward button
  • VOL-: volume decrease and rewind button
  • 1.8V

Potentiometer Port: There is an Ext POT port on the board. You can connect external POTs (5 K~20 K) to control the Main volume, treble, middle, and Bass. You need to update the DSP program first. 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 using the USBi JTAG Sigma DSP programmer.

Two boards work in TWS mode. You can also build a wireless stereo system.

  • 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 to disconnect the TWS connection.

Specifications: Unless otherwise noted, specifications are typical at +25℃, powered by 39V DC, and are subject to change without notice.

Parameter Condition Min Typ Max
Supply Voltage (VDC) – 14 36 39
Power output Parallel BTL (mono) output
power, RL = 3 ohm,THD = 10%		 220W
Parallel BTL (mono) output
power, RL = 3 ohm, THD = 1%		 170W
THD Po = 1 W 0.05%
Bandwidth @ ±3dB @4Ω 20Hz – 20KHz
Input Impedance – – 69KΩ –
Undervoltage protection
threshold 		 8V
Minimum Load Impedance 3Ω
Gain 23.8dB 29.8dB/33.3dB 35.8dB
Efficiency – 85% –

Features

  • Size: 13.5cm x 9.2cm x 3.5cm
  • TWS firmware: aptX, aptX-HD, SBC, and AAC
  • Party mode firmware: SBC
  • ADAU DSP integrated
  • Bluetooth 5.1
  • I2S Sampling Rate: 48 KHz
  • Mono output
  • Working voltage: DC14V-39V
  • Smart cooling system
  • Over/under voltage protection
  • Overcurrent protection
  • Over-temperature protection

Applications

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

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