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Table of Contents
Summary of Contents for Tinysine TSA7802B
- Page 1 TSA7802B 2 x 50W Bluetooth + DSP Audio Amplifier Board Datasheet...
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Page 2: Features
Use your phone or PC (etc) to search for a new Bluetooth device. The module will appear as "TSA7802B". You don't need a PIN, pair it and then you can play music. The highlight point is ADAU1701 DSP chip on board. It has a default DSP program loaded. -
Page 3: Table Of Contents
Table of Contents 1 Features ............................2 2 Applications ............................. 2 3 Description ............................2 4 Device function diagram ........................4 5 Specifications ...........................4 6 Connection Ports and Functions ...................... 5 6.1 Power input ........................... 5 6.2 Control buttons ........................5 6.2.1 Standard working mode .....................6 6.2.2 TWS mode ......................... -
Page 4: Device Function Diagram
4 Device function diagram 5 Specifications Specifications typical @ +25℃, Powered by 30VDC, unless otherwise noted. Specifications subject to change without notice. Parameter Condition Supply Voltage (VDC) Power output per channel RL= 4Ω, 10% THD+N RL= 8Ω, 10% THD+N RL= 4Ω, 10% THD+N THD+N @4Ω, 1W, 1KHz 0.03%... -
Page 5: Connection Ports And Functions
6 Connection Ports and Functions 6.1 Power input TSA7802B has 2 power input ports. One is a screw terminal connector and another one is a DC Jack connector. The DC input jack is 2.5mm with positive core polarity. These two ports are connected in parallel. -
Page 6: Standard Working Mode
One TSA7802B works alone How to use: 1. Connect speakers with TSA7802B and power up the TSA7802B, Blue LED and Red LED 2. Now, your smartphone will be able to find a new Bluetooth device which name is “TSA7802B”. Connect it. (Blue LED fast blink) 3. -
Page 7: Aux In En
4. Connect speakers with another TSA7802B and power it up, Blue LED and Red LED flash alternately. 5. Long press S1+S3 for 1 second on the first TSA7802B, board goes into TWS master mode. 6. Long press S1+S2 for 1 second on the second TSA7802B, board goes into TWS slave mode. -
Page 8: Ext Pot Port
6.7 Amplifier chip Gain settings The gain of TSA7802B is fixed to 32dB by default, it’s set by 2 resistors marked as “1” and “2” near amplifier chip under the heat sink. You can change resistance as listed below to get a... -
Page 9: Dsp Programming
8 Bluetooth programming TSA7802B use Qualcomm QCC3031 as the main Bluetooth chip. User can do the programming via the USB port on the board. You can change the BT name, Audio tones, Firmware ect... by using the official Qualcomm software. -
Page 10: Dimensions
9 Dimensions 10 Revision history Document revision history Date Revision Changes 15-Aug-2023 Initial release...
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