PAM8403 Micro Digital Power Amplifier Board 3Wx2 Imported PAM8403 Chip Sound Quality Micro Digital Power Amplifier Board

Product Overview

Description

PAM8403 Micro Digital Power Amplifier Board 3W*2 Imported PAM8403 Chip Sound Quality Module for Arduino for Raspberry Pi diy Project

 

 

Feature:
Model: PA8403
Power: low power consumption Excellent noise suppression, no need to connect the input audio ear to the speaker to hear no noise, two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4Ω, 8Ω small speaker, large output, full of vitality, The sound quality is good. The unique non-LC filter Class D digital power board can be used directly for computer USB power. Double-panel wiring, the wiring properly solves the ground potential caused by the balance and crosstalk between channels, and the ultra-miniature design can be easily placed in various digital products in a small space, and the amplification efficiency is high. All use full-board welding machine, the welding quality can be comparable with non-manual soldering iron!

 

 

Customer FAQ:
1. Can a 2 x 3 w micro digital power amplifier board type D power supply use a computer?
A: The power amplifier board can be powered by a computer, but noise may be generated (and some customers do not have noise). It is best to recommend independent power supply.

2. Is the micro digital 2*3 watt class D power amplifier board and the house's speakers ok?
A: Our speakers only provide DIY players to try, the sound is not particularly good, if the pursuit of high-pitched customers can be purchased separately.

3. 2 x3 w micro digital power amplifier board class D Why is there noise after the speaker is powered?
A: 1. A whistle appears, which should be an audio input line. The introduction of the shielded line should be used for the audio input line, and then the audio input line should not hang up the connected audio source.

2. One reason may be that some power supplies are very disturbing, switching power supplies.
Good noise suppression, the ear can not hear any noise on the speaker when connected to the input audio, dual channel stereo, 5 V power supply can output 3 w + 3 w power, can directly drive 4Ω, 8 Ω small speakers, The output power is large, the energy is large, and the sound quality is good. The unique LC-free Class D digital power board can be powered directly from a computer USB. Double-panel wiring, properly solve the potential balance caused by wiring and crosstalk between channels, ultra-mini design, can be easily placed in a variety of digital products, small space, high amplification efficiency. All use solid plate welder, the welding quality is comparable to the manual soldering iron welding!

Note: The “negative” of the left and right channel outputs cannot be connected together, otherwise the IC will burn out and the active speaker (load) should be connected first.

The rated working voltage is 2.5V~5V, and the working voltage is limited to 5.5V.