MEMS microphone evaluation board based on STA321MPL and MP34DB01 (microphone processor + digital uPhone MEMS)

The STEVAL-MKI126V2 system evaluation board can connect up to six microphones using the sockets provided or through a dedicated six-microphone array.

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

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

The main purpose of the STEVAL-MKI126V2 is to convert the PDM signals provided by the microphones into the more common I2S and PWM signals. The I2S signal is routed both on general and interface connectors, while the suitably-filtered PWM signals provide an analog interface.

Mounted on the STEVAL-MKI126V2 are two MP34DB01 microphones and an STA321MPL processor.

Key Features

  • 2 MP34DB01 MEMS microphones
  • Capable of driving up to 6 digital MEMS microphones
  • 3 independent I2 S outputs
  • Up to 10 independent 32-bit user programmable biquads per channel
  • Fully configurable with:
    • STEVAL-MKI29V1/V2/V3
    • STEVAL-MKI131V1/V2/V3
    • STEVAL-MKI116V1
    • STEVAL-MKI117V1/V2
    • STEVAL-CCA035V1
  • Controllable via APWorkbench software suite
  • RoHS compliant

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设计

技术文档

产品规格
Description Version Size
DB2050 DB2050: MEMS microphone system evaluation board based on the STA321MPL and MP34DB01 1.0 306 KB

硬件资源

Board Manufacturing Specifications
Description Version Size
STEVAL-MKI126V2 gerber files 2.0 583 KB
Bill of Materials
Description Version Size
STEVAL-MKI126V2 BOM 2.0 10 KB
Schematic Packs
Description Version Size
STEVAL-MKI126V2 schematics 2.0 96 KB

法律

许可协议
Description Version Size
Evaluation products license agreement 1.0 125 KB
支持和社区

样片和购买

型号 Marketing Status Unit Price (US$) * Quantity Core Product ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-MKI126V2 Active 99.23 1 STA321MPL; MP34DB01 NEC EAR99 ITALY MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-MKI126V2 ActiveCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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