Digital MEMS Microphone Breakout Board (SPH0641LU4H-1)

ElecrowSKU: RB-Ecw-218
Manufacturer #: CCB50641P

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  • Digital MEMS Microphone Breakout Board (SPH0641LU4H-1)
  • Captures sound from 100Hz to 80kHz, ideal for ultrasonic applications
  • Features exclusive DFSDM module for easy PDM input processing
  • Compatible with the STM32L476RGT6 model

The Digital MEMS Microphone Breakout Board (SPH0641LU4H-1) is a sophisticated piece of technology that features a digital MEMS microphone, specifically the SPH0641LU4H-1 model from Knowles. The board is designed with a pin spacing of 2.54mm. This device is capable of capturing sound ranging from audible to ultrasonic waves, specifically between 100Hz to 80kHz, with a high degree of sensitivity. This makes it suitable for applications in ultrasonic sensors and ultrasonic communication.

The board is equipped with the DFSDM module (Digital Filter for Sigma-Delta Modulators), a feature that is exclusive to the STM32L4 series from STMicroelectronics. This module facilitates the easy reception and processing of the PDM input of a digital microphone, similar to AD conversion. The board is compatible with the STM32L476RGT6 model, providing a practical example of its usage.

  • 1x Digital MEMS Microphone Breakout Board (SPH0641LU4H-1)
  • PCB: 15 x 20 mm (L x W)
  • Pin spacing: 2.54 mm
  • Hole position: M3 x2, 10 mm pitch
  • Power: 1.62 ~ 3.6 V, PDM Output
  • The microphone hole is the circled part located on the back of the board

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