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Audio Amplifier Module with PAM8403
3W Class-D amplifier module with high efficiency and filterless architecture
- Power: 3W, class-D audio amplifier
- THD+N: Low, high-quality sound reproduction
- External Components: Same as Class-AB cousins
- Efficiency: 85%
- Speaker Compatibility: 4 O/8 O small speakers
- Size: 1.85 x 2.11 cm
- Power Supply: 2.5V-5V
Features:
- Dual channel stereo output 3 w + 3 w power Class D
- High amplification efficiency 85%
- Directly drive 4 O/8 O small speakers
- No LC filter class D digital power board
The PAM8403 Audio Amplifier Module, based on a 3W, class-D audio amplifier, utilizes a new filterless architecture for direct speaker driving without the need for low-pass output filters, thus reducing system cost and PCB area. Its efficiency outperforms Class-AB cousins with the same number of external components, extending battery life and making it ideal for portable applications.
For optimal performance, ensure input audio is transmitted via shielded wire, use a properly filtered power supply with quality filter capacitors, avoid shorting speaker wires to prevent IC damage, and limit the power supply to a maximum of 5.5V with regulated power supply.
* Images are for illustration only; actual product may vary.