I2S 3W class D Amplifier Breakout Module - Max98357a

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✅ For excellent sound quality, the Amplifier Board uses a digital input with high noise immunity and high jitter tolerance. It also provides electromagnetic interference suppression and enables the connection of loudspeakers.
✅ Class D amplifier with optional gain: 3dB/6dB/9dB/12dB/15dB
✅ The Mono AMP Board power supplies can automatically configure 35 different clocks and 128 digital audio formats.
✅ MAX31865 audio and video equipment application is diverse: players, earphones and headphones, speakers, professional audio equipment, amplifiers, digital-to-analog converters (DAC).

Important downloads and links


The AZ-Delivery DAC Amp Breakout works with the Raspberry Pi and makes the digital audio files ring. The standard I2S audio input not only decodes an analog signal, but is amplified and combined directly into a speaker, with 2 breakouts (I2S DAC + Amp).

Extensive application possibilities
The 3W Amplifier allows excellent function with Arduino Zero, microcontroller or microcomputer with I2S audio outputs. 

Advanced Technology
Built-in thermal and overcurrent protection make this amplifier very suitable for portable and battery-powered projects.

  • Particularities

    • A sound protocol that is not to be confused with I2C.
    • The amplification can be manipulated by a gain pin.
    • The speaker can output 3.2 watts of power.
  • Details

    • Vin - electricity input (5V)
    • GND, performance negative
    • BCLK - Bit -cycle
    • LRC - left/right clock

  • Technical specifications

Operating voltage 2.5V - 5.5V (5V recommended)
Output power Up to 3W
Impedance 4 - 8 Ohms

77 dB type @ 1kHz

Logic level 3.3V / 5V
Interface I2S
Dimensions 19 x 18 x 3 mm
Weight approx. 3G

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