January 2012

Doc ID 17924 Rev 5

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MP34DB01

MEMS audio sensor

omnidirectional digital microphone

Features

configuration

– Bottom-port design

– SMD-compliant

– EMI-shielded

Applications

Description

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.

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.

The MP34DB01 has an acoustic overload point of

120 dBSPL with a best on the market 62.6 dB

signal-to-noise ratio and -26 dBFS sensitivity.

The MP34DB01 is available in a bottom-port,

SMD-compliant, EMI-shielded package and is

guaranteed to operate over an extended

temperature range from -30 °C to +85 °C.

RHLGA 3x4x1 4LD

Table 1.

Device summary

Part number

Temperature range [°C]

Package

Packing

MP34DB01

-30 to +85

RHLGA (3x4x1) mm 4LD

Tray

MP34DB01TR

-30 to +85

RHLGA (3x4x1) mm 4LD

Tape and reel

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