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

Brand: Tinysine
Product Code: G650A908D0796D
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Availability: 280

Price: $56.95

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Description Reviews (0) Related Products (8)

TSA7551B 200W Bluetooth+DSP mono amplifier board with an AudioB plus Bluetooth module that supports Apt-X. TSA7551B is a very flexible DSP/Amplifier combination board. It has perfect class-D architecture(Based on TDA7498E) and the mono channel has 200W power output. This board can be powered by any DC14V-39V power supply. It can be used to drive any 3Ω,4Ω or 8Ω passive speakers. TSA7551B has a smart cooling system, the fan not working in normal case to reduce the noise. Only start when the board overheat.

It's a one channel amplifier board. The only channel 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 a 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 Sigima Studio and 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...

TSA7551B are Apt-X and TWS supported. Therefore, Users can stream audio to 2 paired amplifier boards at the same time wirelessly.

Functions	TSA7551	TSA7550
Bluetooth output signal	Digital -I2S	Analog
Bluetooth version	BT5.1	BT5.0
Bluetooth USB programming	Yes	No
External POTs 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:

There are 3 buttons on the board that can control the audio volume and play/pause ect... You can connect external buttons easily by using these button control ports.

Pins define:(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 (5K~20K) 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:

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

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

S1 - Long press 3s into pairing mode. Long press 6s 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.

Specification:

Specifications typical @ +25℃, Powered by 36V DC, unless otherwise noted. Specifications 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
Power output	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%	-