Boardoza_TPA3111_Mono_Audio_Amplifier_Breakout_Board
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Boardoza TPA3111 Mono Audio Amplifier Breakout Board
The Boardoza TPA3111 Mono Audio Amplifier Module is a compact and efficient Class-D audio amplifier built around the Texas Instruments TPA3111D1 chip. Designed to deliver up to 10W mono output power, this board provides high-quality audio performance with minimal heat generation thanks to its high-efficiency architecture.
With a wide 8V to 28V DC input voltage range, this amplifier module is compatible with a variety of power sources including DC adapters and battery systems. Screw terminal connections for power, audio input, and speaker output make installation quick and reliable. It is ideal for DIY speaker builds, portable audio systems, embedded audio solutions, and custom sound projects requiring compact and efficient amplification.
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| Front Side | Back Side |
|---|---|
Key Features
- High-Efficiency Class-D Amplifier: 310 khz Switching frequency provides clear and powerful mono audio output with minimal heat generation.
- Wide Input Voltage Range: Operates from 8V to 28V DC, compatible with various power sources.
- Easy Connectivity: Screw terminals for audio input, speaker output, and power connections.
- Clean Audio Performance: Integrated pop and click suppression for smooth startup and shutdown.
- Built-in Protection Features: Includes thermal shutdown and short-circuit protection for reliable operation.
Technical Specifications
Model: TPA3111D1
Manufacturer: Boardoza
Manufacturer IC: Texas Instruments
Input Voltage: 8V – 28V DC
Functions: Mono Audio Amplifier
Amplifier Type: Class-D
Output Power: Up to 10W
Efficiency: Up to 90%
Audio Output: Mono (H-Bridge)
Gain Setting: Configurable via JP2 / JP3 (Default: 36 dB)
Protection Features: Thermal protection, short-circuit protection
Operating Temperature: -40 °C to +85 °C
Board Dimensions: 40 mm x 40 mm
Board Pinout
( JP2 & JP3 ) Gain Configuration (GAIN1 / GAIN0)
| Pin / Jumper | Pin Name | Description |
|---|---|---|
| JP2 | GAIN1 | Gain select input (logic level via jumper) |
| JP3 | GAIN0 | Gain select input (logic level via jumper) |
Default configuration is typically 36 dB (GAIN1=1, GAIN0=1).
Gain / Input Impedance Selection Table
| GAIN1 | GAIN0 | Amplifier Gain (dB) (Typical) | Input Impedance (kΩ) (Typical) |
|---|---|---|---|
| 0 | 0 | 20 | 60 |
| 0 | 1 | 26 | 30 |
| 1 | 0 | 32 | 15 |
| 1 | 1 | 36 | 9 |
( JP5 ) Control Pins
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | SD | Shutdown pin (Active Low). Connect to FAULT for auto-recovery |
| 2 | FAULT | Fault indicator pin (Active Low). Connect to SD for auto-recovery |
( J3 ) Power Connector
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | 8V–28V | DC Voltage Input |
| 2 | GND | Ground |
( J1 ) Audio Input
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | IN+ | Positive audio input |
| 2 | IN- | Negative audio input |
( J2 ) Speaker Output
| Pin Number | Pin Name | Description |
|---|---|---|
| 1 | OUT+ | Class-D H-Bridge positive output |
| 2 | OUT- | Class-D H-Bridge negative output |
Board Dimensions
Step Files
Datasheet
Version History
- V1.0.0 – Initial Release
Support
- If you have any questions or need support, please contact [email protected]
License
Hardware Design
All hardware design files are licensed under Creative Commons Attribution-ShareAlike 4.0 International License.
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