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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 based on the MP45DT02, MP34DB01, and MP34DT01
1.0 1,086 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

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; MP34DT01Buy Direct67.37Distributor reported inventory date: 2014-07-25
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE50
Farnell Element14Order NowEUROPE91
DIGIKEYOrder NowWORLDWIDE111
MOUSEROrder NowWORLDWIDE91
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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