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Product Introduction:
1.Power Supply:DC 2-5.5V
2.Output Power:3W+3W(typical)
3.Input Impedance:2K ohm
4.Power Offf Current:less than 0.1UA
5.PCB Size:31.1*19.8mm
6.Sound Track Amount:dual track
7.Frequency Response:100Hz-15KHz
8.Output Impedance:4 ohm
9.Efficiency:more than 90%
Pin Definition:
1.Lin:left sound track input
2.GND:audio input common ground
3.Rin:right sound track input
4.GND:power negative
5.5V:power positive VCC
6.LOUT+:left sound track output positive
7.LOUT-:left sound track output negative
8.ROUT-:right sound track outptut negative
9.ROUT+:right sound track outptut positive
10.OFF:mute control,connect with ground and power off
11.NO:mute control ground,GND
This amplifier board imported original PAM8403 patch design. With dual 3W audio power amplifier. Power supply 5V power supply, the design of the volume control function. Mainly used for, card audio repair, TV sound maintenance, intercom building system audio amplification, treadmill, advertising and other equipment, audio signal amplification field.