5 Pieces Miniature 2 Channel * 3 Watt PAM8403 Class D Stereo Audio Power Amplifier Module Board
This miniature PAM8403 module is a 3W, class-D stereo audio amplifier. It offers low THD+N, allowing it to achieve high-quality sound reproduction, all in a form factor about the size of a US postage stamp!
It can be used in any DIY design requiring a miniature audio amplifier, especially portable and mobile applications operating on battery power.
Features:
Can use the computer USB port, USB power bank or a mobile phone charger to supply the 5V support power
Battery power can also be used
High efficiency: 90%
Can provide 3W (left channel) + 3W (right channel) output power into a 4Ω speak load and 5V power supply
CMOS class D amplifier design for high efficiency and low cost
Noise canceling circuit built into the amplifier board
Power on / off without poppoing noise
Module has short-circuit current protection, under-voltage lockout and over-temperature protection (shuts down at an internal temperature of 140C +/- 15C
Specifications:
Operating voltage: 2.5V-5.5VSpeaker Load: 4-8 OhmsSize: 21 x 18 x 3.4 mm (L x W x H)Net weight:1g
This module has a floating output, therefore left and right channel "negative" connections should not be connected together. The module is designed for driving speakers, it will not work with headphones, which usually share a common ground between the two channels.
Package Contents:
5x (5 pieces) PAM8403 Class D Stereo Audio Power Amplifier ModulePrinted specifications and usage documentation