ماژول آمپلی فایر 2x3W کلاس D با تراشه PAM8403

Introduction

Single lithium battery or USB power supply is suitable, also can use 4 cells of 1.5V , but you must add 5V regulator circuit, more than 6V will burn IC out.+ and - of power supply can't be reversed, power supply voltage can't be more than 6V, otherwise it will damage the IC.There were high gain buffers, can't change any board device parameters.Input: please use shielded wire to avoid any interference and eliminate cluttering sound.Output is CMOS BTL drive mode,all 4 wires are completely independent, don't connect together!

Specification
Power supply: DC2.5-5.5 V.
Output power: 3W + 3W (4Ω).
SNR: 90dB.
Efficiency: > 90%.
Size: 18×21 mm