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STEVAL-MKI138V1

STAudioHub USB interface board based on MP34DT01 and STM32
  • active 活性

The purpose of STEVAL-MKI138V1 is to provide a demonstration of decoding and streaming of digital MEMS microphone outputs.

The STEVAL-MKI138V1 demonstration board hosts the MP34DT01 (top-port digital microphone), working as a sensor and the STM32F107RC microcontroller, which functions as an audio decoder.

These microphones are analog-to-digital transducers. They are capable of sensing sound pressure and converting it to a digital signal using the PDM technique.

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

The STEVAL-MKI138V1 is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable, which both powers the board and streams the audio collected from the microphones to the PC.

It is also possible to use the STEVAL-MKI138V1 as an interface board for other microphone boards (STEVAL-MKI126Vx), in which case use of the APWorkbench software tool is recommended.

pdf 下载
Data Brief

Key Features

  • Powered and connected to PC through USB
  • Sound card automatically recognized by the PC as an audio device.
  • 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 USB
  • LED status indicator
  • RoHS compliant

圖像

图案 资源

顶部

Technical Documentation

Product Specifications

描述 版本 大小
pdf
DB1918: STAudioHub USB interface board based on MP34DT01 and STM32
2.0 246 KB

Application Notes

描述 版本 大小
pdf
AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx
2.0 3,511 KB
pdf
AN4184: Microphone coupon boards STEVAL-MKI129Vx /MKI155Vx based on digital microphones
2.0 1,264 KB
pdf
AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones
1.0 1,572 KB

Hardware Resources

Board Manufacturing Specification

描述 版本 大小
zip
STEVAL-MKI138V1 gerber files
241 KB

Bill of Materials

描述 版本 大小
pdf
STEVAL-MKI138V1 BOM
83 KB

Schematic Pack

描述 版本 大小
pdf
STEVAL-MKI138V1 schematics
1,471 KB

Related Tools and Software

Related Tools and Software

产品型号 描述
APWorkbench Audio Processor Workbench software development suite

License Agreement

描述 版本 大小
pdf
Evaluation products license agreement
1.0 126 KB

样品 & 购买

顶部
产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-MKI138V1ActiveSTM32F107; MP34DT01-72Distributor reported inventory date: 2014-12-22
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE50
Farnell Element14Order NowEUROPE71
DIGIKEYOrder NowWORLDWIDE61
Ecopack2-

(*) 建议零售价格仅用于预算,以美元为单位,每。的报价,以当地货币计算的价格,请联系您当地的 ST 销售办事处 或我们的 分销商
(**) 材料声明表格上提供st.com可以是一般的文件,根据最常用的包,包内的家庭。出于这个原因,他们可能不是100%准确,对于一个特定的设备。请联系我们 销售支持 在特定设备上的信息。
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