PAM8403 3W Audio Amplifier Module (Green)

Overview

The PAM8403 integrated circuit is a 3W class-D audio amplifier that features low harmonic distortion and high efficiency. This module can be powered with a voltage from 2.5V to 5.5V, making it ideal for adding audio capabilities to your new project.

This audio amplifier is the perfect choice for MP3 and MP4 player projects. This board is also suitable for LCD televisions, portable speakers, portable DVD players, phones, speakerphones and more.

Excellent noise suppression, when the input audio is not connected, no noise can be heard when the ear is close to the speaker. Two-channel stereo, 5V power supply can output 3W+3W power, can directly drive 4Ω, 8Ω small speakers, with high output power, sufficient energy and good sound quality. The unique Class D digital power board without LC filter can be directly powered by the computer's USB. Double-panel wiring can properly solve the ground potential balance and crosstalk between channels caused by wiring.

The miniature design can be easily placed in the small internal space of various digital products with high amplification efficiency. All machines are used for the whole board welding, and the welding quality is comparable to non-manual iron welding! Micro volume: 1.85*2.11 cm.

Note: The "negative" of the left and right channel output terminals cannot be connected together, otherwise the IC will be burned, and the speaker (load) should be connected before power on.

Features

• PAM8403 mini class D digital amplifier board
• 2 channels 3W PAM8403 audio amplifier
• Short-circuit current protection
• Over-temperature protection
• Built-in noise canceling circuit
• 5V power supply (computer USB port, cell phone charger, lithium battery)

Specifications

• High efficiency: 90 %
• Output power: 3W + 3W (at 4 ohm)
• Speaker power: 2 ohm to 8 ohm
• Operating Voltage: 2.5V to 5.5V

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