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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デザイン

技術文書

製品スペック
Description バージョン サイズ
DB2050 DB2050: MEMS microphone system evaluation board based on the STA321MPL and MP34DB01 1.0 306 KB

ハードウェアリソース

Board Manufacturing Specifications
Description バージョン サイズ
STEVAL-MKI126V2 gerber files 2.0 583 KB
Bill of Materials
Description バージョン サイズ
STEVAL-MKI126V2 BOM 2.0 10 KB
Schematic Packs
Description バージョン サイズ
STEVAL-MKI126V2 schematics 2.0 96 KB

法務

ライセンス契約
Description バージョン サイズ
Evaluation products license agreement 1.0 125 KB
サポート & コミュニティ

サンプル & 購入

製品型番 Marketing Status Unit Price (US$) * 数量 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 直接購入 買い物かごに追加 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

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
STEVAL-MKI126V2 アクティブCARDIndustrialEcopack2
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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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