PAM8403 Digital Amplifier Board – 2-3W, Class D

🔊 PAM8403 Digital Audio Amplifier Board 🔊

The PAM8403 is a compact, high-efficiency Class D audio amplifier module delivering 2-3W stereo output at low operating voltages (5V). With efficiency over 90% and very low distortion, it is ideal for portable electronic projects and small speaker systems without requiring bulky heatsinks.

✅ Technical Specifications:

• Chipset: PAM8403 Class D.
• Output Power: 2×3W (at 4Ω, 5V).
• Operating Voltage: 2.5V – 5.5V DC.
• Efficiency: > 90%.
• Signal-to-Noise Ratio (SNR): ≥ 85 dB.
• Total Harmonic Distortion (THD+N): ≤ 0.1%.
• Audio Input: Stereo (L/R).
• Supported Load: 4Ω – 8Ω speakers.
• Module Size: ~21 × 18 × 3 mm.
• Approximate Weight: 5 g.

🔹 Key Features:

✔ Very high efficiency with low power consumption.

✔ No additional heatsink required for most uses.

✔ Compact size, perfect for portable projects.

✔ Clean stereo sound with low distortion.

✔ Compatible with Arduino, Raspberry Pi, and DIY audio systems.

📌 Common Applications:

• Portable audio projects.
• USB or battery-powered speakers.
• Small audio systems for phones or PCs.
• Arduino / Raspberry Pi sound projects.
• DIY electronics and learning kits.