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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
Website
Power: 1.62 ~ 3.6 V, PDM Output
The microphone hole is the circled part located on the back of the board
