🔊 PAM8403 Audio Amplifier Module with Volume Control – 2 × 3W Class-D
📝 Overview
The PAM8403 Audio Amplifier Module with Volume Control is a compact Class-D stereo audio amplifier capable of delivering up to 3W per channel with excellent sound quality and high efficiency. It features a built-in volume control potentiometer, making it ideal for portable speakers, DIY audio systems, multimedia projects, and Arduino-based applications. The filterless design allows direct speaker connection without additional output filters.
⚙️ Key Features
Based on the PAM8403 Class-D amplifier IC
Stereo output: 2 × 3W (at 5V with 4Ω speakers)
Built-in volume control
High efficiency up to 90%
Filterless design for direct speaker connection
Low distortion and low noise
Short-circuit and thermal protection
📦 Technical Specifications
Parameter
Value
Amplifier IC
PAM8403
Operating Voltage
2.5V – 5.5V DC
Output Power
2 × 3W (4Ω, 5V)
Amplifier Type
Class-D Stereo
Speaker Impedance
4Ω – 8Ω
Efficiency
Up to 90%
Volume Control
On-board Potentiometer
Protection
Short Circuit, Thermal Shutdown
Dimensions
Approx. 30 × 20 mm
