Description
Mini PAM8403 3W × 2 Channel USB Digital Audio Amplifier Board
The Mini PAM8403 Audio Amplifier Board is a compact and efficient 2-channel digital amplifier module designed for small stereo audio applications. It uses the PAM8403 amplifier chip and can provide up to 3W + 3W stereo output, making it a useful solution for DIY speaker projects and compact sound systems.
The amplifier board can be powered through a 5V DC supply, including a USB power source, making it convenient for use with USB adapters, power banks, and other compatible 5V supplies. Its wide operating voltage range of 2.5V to 5.5V provides flexibility for different low-voltage applications.
The board features a built-in volume control potentiometer, allowing you to easily adjust the audio output. Its compact design also makes it suitable for projects where PCB space is limited.
With its small footprint, stereo output, USB-compatible power supply, and simple operation, the PAM8403 is a practical choice for hobbyists, students, makers, and electronics enthusiasts.
Key Features
- Amplifier Chip: PAM8403
- Amplifier Type: Digital / Class D
- Channels: 2-channel stereo
- Output Power: 3W × 2
- Operating Voltage: 2.5V–5.5V
- Recommended Power Supply: 5V DC
- Power Input: USB-compatible 5V supply
- Built-in Volume Control: Yes
- Compact Mini Amplifier Module
- Suitable for DIY and portable audio projects
- Easy to integrate into small speaker systems
Specifications
| Specification | Details |
|---|---|
| Model | PAM8403 |
| Type | Digital Audio Amplifier |
| Number of Channels | 2 |
| Output Power | 3W × 2 |
| Operating Voltage | 2.5V–5.5V |
| Power Supply | 5V DC |
| Power Input | USB |
| Dimensions | 29.5 × 20.2 × 15 mm* |
*Dimensions do not include the protruding potentiometer shaft.
Applications
The PAM8403 amplifier module is suitable for:
- DIY Bluetooth speakers
- Mini stereo speakers
- USB-powered speakers
- Portable audio systems
- Arduino audio projects
- Microcontroller-based projects
- Educational electronics projects
- DIY multimedia speakers
- Small home audio projects
Why Choose the PAM8403?
The PAM8403 3W × 2 amplifier board is a good option when you need a compact stereo amplifier that can operate from a standard 5V supply. Its small size, USB power compatibility, built-in volume control, and 3W × 2 stereo output make it particularly useful for compact DIY audio projects.
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