PAM 8403 Mini 5V Audio Amplifier Board with Switch Potentiometer

PAM8403 is an amplifier board that can be powered by a simple 5V input and can drive two 3W + 3W stereo speakers. It is an excellent choice for, who wants a Class-D stereo audio amplifier in a small board space. This Amplifier allows the user to achieve high-quality audio reproduction from a stereo input. Additionally, it has a special feature that is, it can drive speakers directly from its output.

This module of PAM series is different from basic PAM8403 Amplifier board as it gives us more control over the output generated by IC itself. By control we mean to say that this amplifier module board comes with a knob which help in controlling the output generated.

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%
• Provides 3W (left channel) + 3W (right channel) output power into a 4Ω speaker load and 5V power supply
• CMOS class D amplifier design for high efficiency and low cost
• A noise-canceling circuit is built into the amplifier board
• Power on / off without popping noise
• Integrated power switch and volume control (turn knob fully counter-clockwise to turn off)
• 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-5.5V
• Speaker Load: 4-8 Ohms
• Size: 29 x 20 x 12.5 mm (L x W x H); 29 x 35 x 12.5 including volume control knob
• Net weight:8g