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STSmartVoice demonstration board based on MP45DT02
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The STEVAL-MKI126V1 demonstration board allows the connection of up to six microphones using the sockets provided, or through the connection of a dedicated six-microphone array.

The digital interface of the board allows the interfacing of the MIC output to the most widely used audio receivers and digital amplifiers, or permits evaluation of the MIC with generic audio measurement equipment. The filtered PWM signals allow the connection of a headset to listen to audio received through the microphones.

The fully digital path ensures a high level of processing with sound preconditioning, filtering and voice enhancement.

The main function of the STEVAL-MKI126V1 is to convert the PDM signals from the microphones into more common I2S and PWM signals.

The I2S signal is routed both on a general and interface connector. The appropriately filtered PWM signals provide an analog interface.

The STEVAL-MKI126V1 is equipped with two MP45DT02 microphones and an STA321MPL scalable digital microphone processor.

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Data Brief

Key Features

  • 2 on-board MEMS MP45DT02 microphones
  • Capable of driving up to 6 digital MEMS microphones
  • 3 independent I2S outputs
  • Up to 10 independent 32-bit user programmable biquads per channel
  • The board is fully compatible with the:
  • STEVAL-MKI129V1/V2/V3
  • STEVAL-MKI131V1/V2/V3
  • STEVAL-MKI117V1/V2
  • Controllable via APWorkbench software suite
  • RoHS compliant


图案 资源


Technical Documentation

Product Specifications

描述 版本 大小
DB1756: STSmartVoice demonstration board based on MP45DT02
2.0 290 KB

Application Notes

描述 版本 大小
AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx
2.0 3,511 KB
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
STEVAL-MKI126V1 gerber files
1.0 489 KB

Bill of Materials

描述 版本 大小
3.0 10 KB

Schematic Pack

描述 版本 大小
STEVAL-MKI126V1 schematics
2.0 210 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

产品型号 Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-MKI126V1ActiveSTA321MPL; MP45DT02Buy Direct99.22Distributor reported inventory date: 2015-05-29
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA10

(*) 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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