MEMS microphone demonstration board based on the MP34DB01 and STM32 (STEVAL-MKI116V1)

The purpose of the STEVAL-MKI116V1 demonstration board is to provide an example of the decoding and streaming of digital MEMS microphone outputs.

The STEVAL-MKI116V1 demonstration board hosts the MP34DB01 (bottom-port digital microphone), working as a sensor, and the STM32F107RC microcontroller, working as an audio decoder.

These microphones are analog-to-digital transducers. They are able to sense sound pressure and convert this signal into a digital signal using the PDM technique.

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

The STEVAL-MKI116V1 demonstration board is a sound card automatically recognized by the PC as an audio device. Connection is made through a USB cable which also supplies the board and then streams the collected audio.

Возможности

  • Powered and connected to PC through USB
  • Sound card automatically recognized by the PC as an audio device
  • The onboard microphones are digital MEMS devices
  • 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 the USB
  • LED status indicator
  • RoHS compliant

Спецификация (BOM)

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MEMS microphone demonstration board based on the MP34DB01 and STM32 STEVAL-MKI116V1

Используемые компоненты

Производитель: STMicroelectronics
Наименование
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Описание Корпус/
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Цена, руб. Наличие
MP34DB01
STMicroelectronics
Арт.: 735501 ИНФО RD
Поиск
предложений
Микрофон - 3x4x1; Траб: -40...85 °C; Примечание: 62.6 dB signal-to-noise ratio; Omnidirectional sensitivity; PDM single-bit output with option for stereo configuration
MP34DB01
-
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предложений
MP34DB01TR
STMicroelectronics
Арт.: 792692 ИНФО RD
Доступно: 18 шт.
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поставки
Микрофон - 3x4x1; Траб: -40...85 °C; Примечание: 62.6 dB signal-to-noise ratio; Omnidirectional sensitivity; PDM single-bit output with option for stereo configuration
MP34DB01TR
18 шт.
(под заказ)
Выбрать
условия
поставки
STEVAL-MKI116V1
STEVAL-MKI116V1
STMicroelectronics
Арт.: 2209150 ИНФО PDF RD
Доступно: 20 шт.
Выбрать
условия
поставки
MEMS microphone demonstration board based on the MP34DB01 and STM32
STEVAL-MKI116V1
20 шт.
(под заказ)
Выбрать
условия
поставки