Pmod MIC3: MEMS Microphone with Adjustable Gain

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The Pmod MIC3 is a MEMS Microphone powered by the Knowles Acoustics SPA2410LR5H-B microphone and the Texas Instruments ADCS7476 analog-to-digital converter. Users may adjust the incoming volume to the system board with the small potentiometer before they receive the 12 bits of data through SPI.

Note: The Pmod MIC3 is also featured in a fantastic product bundle, the Arty S7 Pmod Pack! This bundle was designed to expand project possibilities by utilizing a variety of peripheral modules perfectly suited for the Arty S7 FPGA.

  • MEMS Microphone module with digital interface
  • Transform audio inputs with 12-bit A/D converter
  • Adjust incoming volume with on-board potentiometer
  • up to 1 MSPS of data
  • Small PCB size for flexible designs 1.1 in × 0.8 in (2.8 cm × 2.0 cm)
  • 6-pin Pmod connector with SPI interface
  • Follows Digilent Pmod Interface Specification Type 2
  • Product Compliance: 
    • HTC: 8473301180
    • ECCN: EAR99
  • Pmod MIC3
  • Antistatic custom Pmod packaging

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  • 4

    Posted by John Brown on 9th Aug 2022

    I incorporated the Pmod MIC3 and Pmod SF3 with an ATtiny817. It was a good project. The MIC3's IC is a mode 1 transfer device (SPI) and the flash is mode 0. My first project with multiple SPI devices. I used the Analog Discovery to analyze and debug. The microphone itself seems to be a close-range device.