MP34DB01音频开发板

ladou

STEVAL-MKI116V1 演示板目的是为了提供数字MEMS麦克风的解码和播放方案。The STEVAL-MKI116V1 demonstration board hosts the MP34DB01 (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-MKI116V1 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.
Key Features

       

• 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