Product description
Class D amplifier with 3 + 3 W output power (at 5 V / 4 ohm). The module is built around the PAM8403 amplifier. Since the amplifier is digital (Class D), it draws very little current and is therefore well suited for battery-powered projects. Very compact design, only 2.8 mm thick.
Specifications:
- Supply voltage: 2.5–5.5 V DC
- Current consumption: 16 mA (no load)
- Output power: 2 × 3 W (5 V / 4 ohm) or 2 × 1.5 W (5 V / 8 ohm)
- Signal-to-noise ratio: 80 dB
- Dimensions: 21.5 × 18.3 × 2.8 mm
- Amplification efficiency: 85 %
- Can directly drive small 4 ohm / 8 ohm speakers
- Good sound quality and effective noise suppression
- Unique Class D digital power amplifier module without LC filter
- Can use a computer USB power supply directly
- Low THD+N
- Short-circuit protection
- Thermal shutdown
- Audio processor: PAM8403
