Pam8403 Class D Audio Amplifier Board | 5V DC Micro USB Amplifier

The PAM8403 is a compact 3W Class-D audio amplifier offering low distortion and high-quality sound. Designed with a filterless architecture, it drives speakers directly, eliminating the need for output filters and saving PCB space. Perfect for portable applications, the PAM8403 amplifier board extends battery life and ensures consistent performance with minimal power consumption.

Featuring USB power compatibility, this board is easy to integrate into DIY audio projects, portable speakers, and more. Its small size and efficient design make it suitable for space-constrained applications. Whether you’re working on audio for TVs, notebooks, or custom-built devices, the PAM8403 delivers reliable audio amplification with precision.

Key Features

• 3W Class-D amplifier with low THD.
• Filterless design for direct speaker connection.
• Compact 21x21x2mm PCB for easy integration.
• Compatible with 5V USB power supply.
• Extends battery life for portable devices.

Applications

• LCD Monitors, TVs, and Projectors.
• Notebook and portable speaker systems.
• Cellular phones and game machines.
• DIY audio projects and custom builds.

Technical Specifications

How to Use

1. Connect the PAM8403 board to a 5V USB power supply.
2. Attach audio input and output wires to the respective terminals.
3. Adjust the volume control as needed for optimal sound.
4. Test the audio output with connected speakers.

Package Includes

• 1 x PAM8403 USB Power Amplifier Board

Additional Resources

Learn more about Class-D Amplifiers
Explore our Audio Amplifier Module Collection