Features

•

Single supply voltage

•

Low power consumption

•

AOP = 122.5 dBSPL

•

64 dB signal-to-noise ratio

•

Omnidirectional sensitivity

•

–26 dBFS ±3 dB sensitivity

•

PDM output

•

HCLGA package

–

Top-port design

–

SMD-compliant

–

EMI-shielded

–

ECOPACK, RoHS, and “Green” compliant

Applications

•

Anti-tampering devices

•

Vibration monitoring

•

Audio-activated functions

•

Predictive maintenance

•

Noise cancelling

•

Sound detection for alarm systems

•

Human / machine voice interface

•

Anti-theft systems

Description

The IMP34DT05 is an ultra-compact, low-power, omnidirectional, digital MEMS

microphone built with a capacitive sensing element and an IC interface.

The sensing element, capable of detecting acoustic waves, is manufactured using a

specialized silicon micromachining process dedicated to producing 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.

The IMP34DT05 is a low-distortion digital microphone with a 64 dB signal-to-noise

ratio and –26 dBFS ±3 dB sensitivity.

The IMP34DT05 is available in a top-port, SMD-compliant, EMI-shielded package

and is guaranteed to operate over an extended temperature range from -40 °C to

+85 °C.

Product status link

IMP34DT05

Product summary

Order code

IMP34DT05TR

Temperature

range [°C]

-40 to +85

Package

HCLGA 4LD

(3 x 4 x 1 mm)

Packing

Tape and reel

Product label

MEMS audio sensor omnidirectional digital microphone for industrial applications

IMP34DT05

Datasheet

DS12725 - Rev 3 - April 2019

For further information contact your local STMicroelectronics sales office.

www.st.com