STEVAL-MKI117V1 MEMS microphone demonstration board based on the MP34DT01 and STM32

The purpose of the STEVAL-MKI117V1 demonstration board is to provide an example of the decoding and streaming of digital MEMS microphone outputs.

The STEVAL-MKI117V1 demonstration board hosts the MP34DT01 (bottom-port digital microphone), working as a sensor, and the STM32F107RC microcontroller, working as an audio decoder.

These microphones are analog-to-digital transducers. They are able to sense sound pressure and convert this signal into a digital signal using the PDM technique.

The STM32 microcontroller decodes the PDM signal coming from the microphones and streams the audio via the USB.

The STEVAL-MKI117V1 demonstration board is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable which also supplies the board and then streams the collected audio.

技术特性
  • Powered and connected to PC through USB
  • Sound card automatically recognized by the PC as an audio device
  • The onboard microphones are digital MEMS devices
  • MEMS microphones provide a high frequency data stream (1 to 3.25 MHz) of 1-bit digital samples (PDM technique)
  • Audio collected from the microphones is sent to the PC through the USB
  • LED status indicator
  • RoHS compliant
功能框图
STEVAL-MKI117V1 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
STEVAL-MKI117V1 Preview   1000       STEVAL-MKI117V1
DATA BRIEF
描述 版本 大小
STEVAL-MKI117V1 : MEMS microphone demonstration board based on the MP34DT01 and STM32 1 358KB
USER MANUALS
描述 版本 大小
UM1448: STEVAL-MKI117V1 Bluetooth® extension board for STEVAL-MKI109V1 1 587KB
UM1049: Unico GUI: software guide 2 1838KB
UM1064: Software guide for Unico Lite 2 349KB
LICENSE AGREEMENTS
描述 版本 大小
Software licence agreement 1.0 34KB
Demo products licence agreement 1.0 23KB
BILL OF MATERIALS
描述 版本 大小
Bill of materials 1.0 7KB
SCHEMATIC PACKS
描述 版本 大小
Board schematic 1.0 18KB
PCB LAYOUTS
描述 版本 大小
PCB layout 1.0 15KB