Close Range / Low Volume I2S MEMS Microphone Breakout Board

Low Volume Detecting I2S MEMS Microphone Board for high quality sound detection from a close range. Filters out background noise very well for high definition natural sound from a close distance. Digital audio output via I2S serial protocol. 1.8V to 3.3V. Compatible with ESP32 controllers and Raspberry Pis.

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Availability: SHIPS TODAY

Last Updated: 06/08/2023




Features :

  • Flat wideband frequency response for high definition natural sound
  • Digital output via I2S Serial
  • Operating Voltage: 1.8V to 3.3V
  • High signal-to-noise ratio  meaning it filters out noise well making it a good choice for close range audio pickup while filtering out background noise
  • High precision 24-bit data
  • Signal to noise ratio: 61 dBA
  • Sensitivity: 26 dBFS
  • Frequency response: 60 Hz to 15 kHz
  • Current consumption 1.4 mA
  • PSR: -75 dBFS
  • Pinout:
    • SCK: Serial data clock for I2S interface
    • WS: Serial data word selection for I2S interface
    • L/R: Left/Right channel selection.
      • When set to low, the microphone outputs a signal on the left channel of the I2S frame.
      • When set to high level, the microphone outputs signals on the right channel
    • SD: Serial data output of the I2S interface.
    • VCC: Input power, 1.8V to 3.3V.
    • GND: Ground 0V
  • Pin connection for use with ESP32 controllers:
    • SCK >> GPIO14
    • SD >> GPIO32
    • WS >> GPIO15
    • L/R >> GND
    • GND >> GND
    • VDD >> VDD3.3
  • Works with ESP32 based microcontrollers and Raspberry Pis.
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