Description:
Longding micro PAM8403 board with original digital amplifier chip (mostly domestic chip market), the circuit is simple, reliable work. Operating Voltage 2.5V-5.5V, the maximum output 3Wx2, efficiency can reach more than 90%, you can use the computer USB port 5V power supply, ideal for battery or portable electronics products. Compact board, with a switch and a potentiometer, can be arbitrary adjust the volume and control power switch, use and installation are very flexible and convenient. All components used to use genuine device capable long-term stability.
Features:
The board is a good product welding test plate, above potentiometer is provided with a switch to control volume and power switch, the operating voltage should not exceed 5.5V, the power of positive and negative do not pick the wrong, or chip damage possible.
Operating voltage: 2.5V-5.5V
Maximum output: 3Wx2 (5V 4 ohms)
Board size about: Width 30mm / depth 22mm / high 16mm (Dimensions excluding potentiometer handle protruding parts)
Package included:
1 X Puuli PAM8403 Ultra Small 5V Mini Power Amplifiers Audio Amplifier Digital Ampli Board Support USB Power 2 Channel Stereo Amp 3W+3W for Portable Speaker Headphones Headset
