PAM8403 Module 3W Class D Amplifier Board 2.5 to 5V PAM8403

PAM8403 5V Stereo Audio Amplifier Module is a compact, high-efficiency audio amplifier board capable of delivering 3W+3W stereo output using a 5V power supply. Based on the PAM8403 IC, it is widely used in DIY audio systems, portable speakers, and embedded audio applications due to its excellent sound quality and low distortion.

Key Features:

• Dual Channel Output: Delivers 3W + 3W stereo power output at 5V.

• Low THD: Total Harmonic Distortion under 10% for clear audio reproduction.

• High Efficiency: Class-D amplifier design for minimal heat and high power efficiency.

• Ultra-compact Size: Ideal for small form factor and portable projects.

• Filterless Output: Simplified circuit reduces components and design complexity.

Technical Specifications:

• Operating Voltage: 2.5V to 5.5V DC (5V recommended)

• Output Power: 3W + 3W @ 4Ω, 5V, 10% THD

• Channel Configuration: Stereo (Left and Right)

• IC Used: PAM8403

• Efficiency: Up to 90%

• Frequency Response: 20Hz to 20kHz

• Signal-to-Noise Ratio: >90 dB

• Input Type: Stereo audio (left/right channels)