5V Power Audio Amplifier Board 2 Channel 3W W Volume Control/USB Power
5V Power Audio Amplifier Board 2 Channel 3W W Volume Control/USB Power
5V Power Audio Amplifier Board 2 Channel 3W W Volume Control/USB Power
5V Power Audio Amplifier Board 2 Channel 3W W Volume Control/USB Power

    5V Power Audio Amplifier Board 2 Channel 3W W Volume Control/USB Power

    $11.99 $17.68
      PAM8403 small mini 5 v digital power amplifier board (can be USB powered) (XY) board USES PAM8403 digital power amplifier chip, circuit is simple, reliable work.Working voltage of 2.5 V to 2.5 V, 3 wx2 maximum output, efficiency can achieve 90% above, can use computer USB 5 V power supply, is very suitable for battery and portable electronic products.Bat small size, and is equipped with switch, potentiometer, can follow one's inclinations of the volume, and control the power switch to use and install is very flexible and convenient.Using devices all use the real thing, can be competent for long-term stability.
      Operating voltage: 2.5 V to 2.5 VMaximum output: 3 wx2 (5 v 4 o)Board size: about 22 mm 30 mm wide/deep/high 16 mm excluding potentiometer handle bulge (dimension) boards are finished plate welding test, the above potentiometer is with switch, can control the volume and power switch, not more than 5.5 V, working voltage power supply positive and negative don't wrong, otherwise the chip has the potential to damage.

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