PAM 8403 module amplifier with potentiometer

The PAM8403 audio amplifier module with potentiometer is a 3W Class D audio amplifier. This module is the same as the PAM8403 module, but thanks to its included potentiometer it offers us under THD + N, which allows you to achieve a higher quality sound reproduction.

To use it, you only need a power supply of between 2.5 and 5 V, two 3 W speakers and 4 Ω impedance and an audio jack connector. Having this material you can carry out and develop your projects in the best way.

Main features:

• Class D amplifier
• Efficiency 90%
• S/N 90dB ratio
• Short circuit and overtemperature protection
• 3W per channel (at 5V and 4Ω)
• For 4 Ω and 8 Ω speakers
• 2.5 to 5V power
• Dimensions: 30mm x 22mm
• Can be powered from USB

pin distribution:

• OUT L: Left speaker output
• OUT R: Right speaker output
• L: Left audio input
• A: Right audio input
• T: Audio input mass (negative)
• Power -: Mass (negative)
• Power +: 2.5V to 5V power supply voltage