1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of the TinySine TSA8802B Bluetooth 5.1 + DSP Audio Amplifier Board. The TSA8802B is a high-performance 2x100W Class-D amplifier board featuring Bluetooth 5.1 with Apt-X support and an integrated ADAU1701 DSP chip for advanced audio processing. It is designed to drive 2Ω to 8Ω passive speakers with a DC 12V-30V power supply.
2. Key Features
- Output Power: 2 x 100W (Class-D, TPA3221 based)
- Bluetooth Version: 5.1 with Apt-X, Apt-X Low Latency, SBC, and AAC support
- Digital Signal Processor (DSP): Integrated ADAU1701 chip
- I2S Sampling Rate: 48KHz
- Working Voltage: DC 12V-30V
- Speaker Impedance: 2Ω-8Ω
- Cooling: Smart cooling system
- Protection: Over/under voltage, over current, over temperature protection
- TWS Support: True Wireless Stereo functionality
3. Package Contents
Please verify that all items are present upon opening the package:
- 1x TinySine TSA8802B Bluetooth 5.1 + DSP Audio Amplifier Board
- 1x 2.4GHz Flat PCB Antenna - 4dBi
4. Product Overview
This image displays the top view of the TinySine TSA8802B amplifier board with key components labeled. Visible labels include "External LED Port", "DC power input", "RCA input", "2x100W output", "DSP I/O", "External Buttons Port", "Potentiometer port", and "DSP Programming port". The board features a central cooling fan, several large capacitors, and various input/output connectors.
The TSA8802B board integrates multiple functionalities into a compact design. Understanding the layout of its ports and components is crucial for proper setup and operation.
- DC Power Input: Connect your 12V-30V DC power supply here.
- RCA Input: For analog audio input from external sources.
- 2x100W Output: Speaker output terminals for connecting passive speakers.
- External LED Port: For connecting an external status LED.
- External Buttons Port: For connecting external control buttons (e.g., play/pause, volume).
- Potentiometer Port: For connecting external potentiometers for volume or tone control.
- DSP Programming Port: Used for advanced DSP programming via a USBi programmer and SigmaStudio software.
- DSP I/O: Digital Signal Processor Input/Output connections.
This image shows the TinySine TSA8802B amplifier board from an angled perspective, with the included 2.4GHz flat PCB antenna connected to its designated port. The antenna is positioned to the right of the board, extending upwards.
An angled view of the TinySine TSA8802B amplifier board, highlighting the heat sink and cooling fan assembly in the center, surrounded by large electrolytic capacitors. This perspective provides a clear view of the board's compact design and component density.
5. Setup Instructions
- Connect the Antenna: Carefully connect the provided 2.4GHz Flat PCB Antenna to the antenna connector on the amplifier board. Ensure a secure connection for optimal Bluetooth performance.
- Connect Speakers: Connect your passive speakers (2Ω-8Ω) to the "2x100W output" terminals. Observe correct polarity (+ to + and - to -) for each channel.
- Connect Power Supply: Connect a DC 12V-30V power supply to the "DC power input" port. Ensure the power supply is capable of providing sufficient current for your speakers (e.g., 24V, 5A for 2x100W output).
- (Optional) Connect RCA Input: If using an analog audio source, connect it to the "RCA input" ports.
- (Optional) External Controls: If desired, connect external LEDs, buttons, or potentiometers to their respective ports as indicated in the product overview.
6. Operating Instructions
- Power On: Once all connections are secure, apply power to the amplifier board. The board will typically enter Bluetooth pairing mode automatically.
- Bluetooth Pairing:
- On your mobile phone, computer, or other Bluetooth-enabled device, search for new Bluetooth devices.
- Locate and select "TSA8802B" from the list of available devices.
- No PIN is required for pairing. Once paired, your device will connect to the amplifier.
- Playing Music: After successful pairing, you can begin playing audio from your connected device. The sound will be amplified and output through the connected speakers.
- DSP Adjustment (Advanced Users):
- The ADAU1701 DSP chip has a default program loaded, allowing basic adjustments like gain, bass, midrange, and treble.
- For advanced customization, such as equalization, crossover, bass enhancement, multiband dynamics processing, and delay compensation, a USBi programmer and Analog Devices SigmaStudio software are required. Connect the USBi programmer to the "DSP Programming port" to access these features.
- True Wireless Stereo (TWS) Functionality: The TSA8802B supports TWS, allowing two paired amplifier boards to stream audio simultaneously for a stereo experience. Refer to specific TWS pairing instructions if available from TinySine for detailed steps.
7. Maintenance
- Cleaning: Ensure the amplifier board is powered off and disconnected from the power source before cleaning. Use a soft, dry cloth to gently wipe the surface. Avoid using liquid cleaners or solvents.
- Cooling System: The integrated smart cooling system helps maintain optimal operating temperature. Ensure the fan is not obstructed and that there is adequate airflow around the board. Periodically check for dust accumulation on the fan and heatsink and clean gently with compressed air if necessary.
- Storage: When not in use for extended periods, store the amplifier board in a dry, dust-free environment, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No power/LED indicator off | Incorrect power supply voltage or current; loose power connection; faulty power supply. | Verify power supply is within DC 12V-30V and provides sufficient current. Check power cable connections. Test with a different power supply if available. |
| No sound output | Incorrect speaker connection; speakers not working; Bluetooth not paired; audio source issue; volume too low. | Check speaker wire polarity and connection. Ensure speakers are functional. Confirm Bluetooth is paired and audio is playing from the source. Increase volume on both the source device and the amplifier (if external volume control is used). |
| Bluetooth pairing issues | Device too far; interference; amplifier already paired to another device; device Bluetooth off. | Ensure the amplifier and source device are within range. Turn off Bluetooth on other nearby devices. Disconnect from any previously paired devices. Restart Bluetooth on your source device and try pairing again. |
| Distorted audio | Volume too high; impedance mismatch; faulty audio source. | Reduce volume on both the source and amplifier. Ensure speakers are within the 2Ω-8Ω impedance range. Test with a different audio source. |
9. Specifications
| Parameter | Value |
|---|---|
| Model Number | TSA8802B |
| Output Power | 2 x 100W |
| Bluetooth Version | 5.1 |
| Bluetooth Codecs | aptX, aptX Low Latency, SBC, AAC |
| DSP Chip | ADAU1701 |
| I2S Sampling Rate | 48KHz |
| Working Voltage | DC 12V-30V |
| Speaker Impedance | 2Ω-8Ω |
| Dimensions (L x W x H) | 13.5cm x 9.2cm x 3.5cm (5.31 x 3.62 x 1.38 inches) |
| Weight | Approximately 10.24 ounces (290g) |
| Manufacturer | Tinysine |
10. Applications
The TinySine TSA8802B amplifier board is suitable for a variety of audio projects and systems, including:
- Personal computer audio systems
- Background music systems
- Musical instrument amplifiers
- Home DIY audio projects
- Car audio modifications
11. Safety Information
- Always ensure the power supply is disconnected before making any connections or disconnections to the amplifier board.
- Do not expose the device to moisture, water, or extreme temperatures.
- Avoid placing the device in direct sunlight or near heat sources.
- Do not attempt to open or modify the amplifier board beyond the intended user-serviceable connections. This may void the warranty and pose safety risks.
- Ensure proper ventilation to prevent overheating, especially during prolonged operation at high power levels.
12. Warranty and Support
TinySine products are designed for reliability and performance. For specific warranty details, please refer to the documentation provided with your purchase or contact TinySine customer support directly. In case of technical issues or questions not covered in this manual, please reach out to the manufacturer for assistance.
Manufacturer: Tinysine
