TSA1702B Bluetooth + DSP Audio Receiver Board

Brand: Tinysine
Product Code: G65A4F8A62F0BF
Reward Points: 0
Availability: 500

Price: $32.80

5 or more $30.60
20 or more $29.20

Available Options

* Firmware type:

Qty: Add to Cart

- OR -

Add to Wish List
Add to Compare

0 reviews | Write a review

Description Reviews (0) Related Products (6)

TSA1702B is a Bluetooth + DSP board with an AudioB I2S v3 module that supports Apt-X. It can be powered by a microUSB cable or any DC9V-30V power supply. You can pair it with a mobile phone or a computer (etc). Power the board, use your phone or PC (etc) to search for a new Bluetooth device. The module will appear as "TSA1702B". You don't need a PIN, pair it and then you can play music. It is just like a TSA1701 + Bluetooth.

The TSA1702B is a complete audio digital signal processing module. The main DSP chip on this module is ADAU1701. The application range from active loudspeaker concepts (digital 3 way 3 unit, 2 way 2 unit crossover, bass enhancement, etc.) and realize the transformation from 2.0 to 2.1. It has four potentiometers and with default program loaded. Customers can adjust the gain, bass, midrange and treble. It also has a debug port for Sigima Studio, and users can program this module with our USBi programmer to get more functions that include equalization, crossover, bass enhancement, multiband dynamics processing, delay compensation, etc.

How to use:

TWS firmware (single board)

Power up TSA1702, red LED slow blink then red and blue LED flash alternately.
Now, your smartphone will be able to find a new Bluetooth device which name is "TSA1702B", connect it. Blue LED flash.
You can play the music now.

TWS connection (2 boards can connected together)

Master board

Power up TSA1702, red LED slow blink then red and blue LED flash alternately.
Now, your smartphone will be able to find a new Bluetooth device which name is "TSA1702B", connect it. Blue LED flash.
You can play the music now. If you only use one amplifier board, you don't need do the following steps.
Long press S1+S3 button for 1 second, board into TWS master mode. Red and blue LED flash alternately.

Slave board

Power up another TSA1702, red LED slow blink then red and blue LED flash alternately.
Long press S1+S2 button for 1 second, board into TWS slave mode. Red and blue LED flash alternately.
The master board will auto searching (30 seconds) slave board. Both master and slave board will be connected.
The slave board will have music out now.
If you want to disconnect TWS connection, long press S2+S3 button for 1 second to disconnect TWS connection.

Party firmware (single board)

Power up TSA1702, blue LED flash 3 times per cycle.
Double click S3 button, TSA1702 into pairing mode. (Voice: Pairing, blue LED flash 2 times per cycle.)
Now, your smartphone will be able to find a new Bluetooth device which name is "TSA1702B", connect it. (Voice: Pairing successful, blue LED flash 1 time per cycle.)
You can play the music now.

Party connection (multi boards can connected together)

Transmitter board

Power up TSA1702, blue LED flash 3 times per cycle.
Double click S3 button, TSA1702 into pairing mode. (Voice: Pairing, blue LED flash 2 times per cycle.)
Now, your smartphone will be able to find a new Bluetooth device which name is "TSA1702B", connect it. (Voice: Pairing successful, blue LED flash 1 time per cycle.)
You can play the music now. If you only use one amplifier board. You don't need do the following steps.
Press S2 button, board into transmitter mode.(Voice: Broadcast mode)

Receiver board

Power up another TSA1702, blue LED flash 3 times per cycle.
Press S3 button, board into receiver mode.(Voice: Broadcast audio enabled)
Double click S2 button on transmitter board, double click S3 button on receiver board, the transmitter board will auto searching (30 seconds) receiver board. Both transmitter and receiver board will be connected.
The receiver board will have music out now.
If a new TSA1702 want to join as receiver board, repeat step1~step3 on the new TSA1702 board.
If a receiver board wants to quit, click S2 button on that board to set it into transmitter mode.

Pins define:

Port name	Pin name	Direction	Description
External Potentiometers port	3.3V	Power Out	3.3V Output
	A_ADC1	Analog In	Treble control
	A_ADC2	Analog In	Midrange control
	A_ADC3	Analog In	Bass control
	A_ADC0	Analog In	Gain control
	GND	-
Aux in Input	GND	-
	ADC1	Analog In	Right channel
	ADC0	Analog In	Left Channel
Audio Out1	GND	-
	DAC0	Analog Out	Left Channel
	DAC1	Analog Out	Right channel
Audio Out2	GND	-
	DAC2	Analog Out	Left Channel
	DAC3	Analog Out	Right channel

Control buttons:

There are 3 buttons on the board which can control the audio volume and play/pause ect...

Pins define:(Check the board backside silkscreen):

S1: Play/pause button
S2: long press decrease volume, short click to play the previous song
S3: long press increase volume, short click to play the next song

Potentiometers port:

You can connect external POTs (5K~20K) to control the Main volume, treble, middle, Bass. This is our POT kit

ADC0- Main volume.
ADC1- Bass volume.
ADC2- Middle volume.
ADC3- treble volume.

Warning: You need to disconnect the soldering pads on the board back side when you connect external potentiometers. Or the ADC port may be burned. Potentiometers value: 1Kohm-100Kohm.

DSP programming port:

TSA1702B's DSP detects both Bluetooth signal and Line in signal, but the default program makes Bluetooth has higher prority. If Bluetooth signal is detected, TSA1702B will output Bluetooth audio source, otherwise it will output Line in audio source. You can develop DSP program to fulfill your requirement, then load the new DSP program by using USBi JTAG Sigma DSP programmer.