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Home » NEWEST Products » New by Manufacturer » STMicroelectronics » MP3xABxx MEMS Audio Microphones - STMicro
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STMicroelectronics MEMs Audio Analog & Digital Sensor Microphones

STMicroelectronics MP33ABxx MEMS Audio Analog Microphone are compact, low-power microphones built with a low-profile sensing element. The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process to produce audio sensors. The MP33AB01 has an acoustic overload point of 125 dBSPL with a 63 dB signal-to-noise ratio. The MP33AB01H has an acoustic overload point of 125 dBSPL with a 66 dB signal-to-noise ratio.


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Features
  • Single supply voltage
  • Low power consumption
  • Omnidirectional sensitivity

  • High signal-to-noise ratio
  • High bandwidth
  • Package compliant with reflow soldering

STMicroelectronics MP34Dx01/45DT02 Audio Digital Microphones are ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface with stereo operation capability. The sensing element, capable of detecting acoustic waves, is manufactured using a specialized silicon micromachining process dedicated to produce audio sensors. The IC interface is manufactured using a CMOS process that allows designing a dedicated circuit able to provide a digital signal externally in PDM format. Typical applications include mobile terminals, laptop and notebook computers, portable media players, VoIP, speech recognition, A/V eLearning devices, gaming and virtual reality input devices, digital still and video cameras and anti theft systems.

Features
  • Single supply voltage
  • Low power consumption
  • 120dBSPL acoustic overload point
  • Up to 63dB signal-to-noise ratio
  • Omnidirectional sensitivity
    • –26dBFS sensitivity
  • PDM single-bit output
 
Applications
  • Mobile terminals
  • Laptop and notebook computers
  • Portable media players
  • VoIP
  • Speech recognition
  • A/V eLearning devices
  • Gaming and virtual reality input devices
  • Digital still and video cameras
  • Anti theft systems
 

STEVAL-MKI117V1 MEMS Microphone Demonstration Boards are based on the MP34DT01 and STM32 to provide and example of the decoding and streaming of digital MEMS microphone outputs. These demonstration boards hosts the MP34DT01 (bottom-port digital microphone), working as a sensor, and the STM32F107RC microcontroller, working as an audio decoder.



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STmicroelectronics STEVAL-MKI129Vx Microphone Coupon Boards are daughterboards that are designed to be used in conjunction with the STEVAL-MKI126Vx (Smart Voice) kit, containing 4 MP45DT02 digital MEMS microphones. The coupon concept allows easy performance testing of ST MEMS microphones. When inserted in the Smart Voice board, it is possible to detach the single PCBs hosting each microphone.

Additional Resources

STEVAL-MKI129V1 Datasheet
STEVAL-MKI129V1 Product Info
STEVAL-MKI129V2 Datasheet
STEVAL-MKI129V2 Product Info
STEVAL-MKI129V3 Datasheet
STEVAL-MKI129V3Product Info
Features 
  • 4 x MP45DT02 top port digital MEMS microphones
  • Daughterboard to be used with STEVAL-MKI126Vx kit
  • Vsupply from 1.64V to 3.6V
  • 120 dBSPL acoustic overload point
  • Omnidirectional sensitivity
  • PDM single-bit output

  • 61 dB (STEVAL-MKI129V1), 62.6 dB (STEVAL-MKI129V2) or 63 dB (STEVAL-MKI129V3) of SNR
  • Sensitivity -26 dBFS
  • RoHS compliant

  • STMicroelectronics
  • Audio
  • Semiconductors|Integrated Circuits|IC-Audio