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Gravity: 386AMP Audio Amplifier Module

SKU: DFR0064

This *DFRobot 386AMP audio amplifier module* uses the National Semiconductor LM386 audio power amplifier chip. It has 20 voltage gain. With a 6V power supply, it has a static power consumption of only 24mW, the module is suitable for battery-powered applications. The 386AMP audio amplifier can be connected to MIC or acoustic sensor module, after the sound is amplified it is passed to the speaker. It is ideal for robot human-machine voice interaction and sound amplification.

Angled shot of back of 386AMP audio amplifier module showing RCA and power connectors-DFRobot product sku:DFR0064 image.

Downloadable Resources

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  • Tech Specs

    • Specification

    Parameter Details
    Power supply 4-12V
    Output power VS = 6V, RL = 8W, P=325mW，Peak output 500mW
    Voltage Gain VS = 6V, f = 1 kHz，Av=26dB
    Band width 300KHz
    Size 45x30mm
    Speaker 8Ω, 0.5W

    Pinout

    DFR0064EN.jpg

    FAQ

    • What to do if the 386AMP Module outputs severe popping/clicking sounds (clipping distortion)?
      The 386AMP Module requires connection to an audio Line-out or DAC output. It cannot accept pre-amplified audio signals if the preceding module already has an integrated audio power amplifier.

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