STMicroelectronics MP34DB01 MEMS Audio Sensor Datasheet

The MP34DB01 is an ultra-compact, low-power, omnidirectional, digital MEMS microphone built with a capacitive sensing element and an IC interface with stereo operation capability.


STMicroelectronics MP34DB01 MEMS Audio Sensor Datasheet - cover page
Brand
STMicroelectronics
Document type
Datasheet
Language
English
Pages
16
File format
PDF
File size
321 KB
Published
10 August, 2012
Updated
30 September, 2023
MD5 checksum
1E352A22B39FC288C4AB5F5EE67C3918

About this manual

The MP34DB01 is an ultra-compact, low-power, omnidirectional digital MEMS microphone designed for mobile terminals, laptops, and portable media players. It features a capacitive sensing element and an IC interface providing a digital signal in PDM format, with the option for stereo configuration. The device operates on a single supply voltage with a low power consumption of 0.65 mA in normal mode.

What's inside

  • Pin description
  • Acoustic and electrical specifications
  • Timing characteristics
  • Frequency response
  • Sensing element
  • Absolute maximum ratings
  • Functionality
  • Application recommendations
  • Package mechanical data
  • Revision history

Specifications

Supply voltage1.64 to 3.6 V
Acoustic overload point120 dBSPL
Signal-to-noise ratio62.6 dB
Sensitivity-26 dBFS
Operating temperature range-40 to +85 °C
Clock frequency (normal mode)1 to 3.25 MHz
Package dimensions3 mm x 4 mm x 1 mm

Frequently asked questions

What is the acoustic overload point of the MP34DB01?

The acoustic overload point is 120 dBSPL.

Can the MP34DB01 operate in stereo mode?

Yes, the device has an IC interface that allows designing a dedicated circuit able to provide a digital signal externally in PDM format with stereo operation capability.

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