PAM8403 digital mini amplifier board Class D Stereo Audio Power For Arduino 2.5-5v [ElectricA]

PAM8403 is a 3W, class-D audio amplifier. 
- offers low THD+N allowing it to achieve high-quality sound reproduction. 
- new filterless architecture allows the device to drive the speaker directly
- requiring no low-pass output filters
- saving system cost and PCB area.
- efficiency of the PAM8403 is much better than that of Class-AB cousins. 
- can extend the battery life, which makes it well-suited for portable applications.

2 channels 3 W PAM8403 audio amplifier
Output Power: 3 W + 3 W (at 4 ohm)
Working Voltage: 2.5 to 5.5 V
Board Size: 24 x 15 mm
High amplification efficiency 85%
Unique without LC filter class D digital power board
Can use computer USB power supply directly

The PAM8403 is a 2-channel, 3W, class-D audio amplifier module that features low harmonic distortion and high efficiency. It offers low THD+N, allowing it to achieve high-quality sound reproduction. Operating voltage for this module range from 2.5 V to 5.5 V, making it ideal for adding the audio capability to your MP3 and MP4 player projects.