PAM8403 Mini Amp Digital Amplifier Board

Size:20mmx20mmx1.5mm/0.79"x0.79"x0.06"(inch) (approx)

Features:

1.Advanced Micro Devices, volume: 1.85 * 2.11cm

2.Excellent noise suppression in the case is not connected to the input audio, the ear close to the speaker can not hear any noise.

3.Two-channel stereo, 5V power supply can output 3W +3 W power, can directly drive 4Ω 8Ω small speaker output power, full of energy, good sound quality.

4.Unique without LC filter Class D digital power board, and can be used directly to the computer's USB powered.

5.Dual-panel wiring, properly solve the crosstalk between the ground potential balance and channel wiring.

6.Ultra-miniature design, can easily be placed in the internal space for a variety of digital products, ultra high zoom efficiency.

7.All using the machine for the entire board soldering, hand soldering iron welding quality comparable!

8.Rated working voltage 2.5-5V, limit operating voltage 5.5V.

 

 

Tips: This module power supply should be clean and have enough power, input supply voltage can provide 1A or more current, otherwise blocked due to insufficient power supply sound ; such as a computer USB port power supply, the power supply can be connected to both ends 470UF electrolytic capacitors, otherwise there will be noise !