Preliminary data

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to

change without notice.

August 2010

Doc ID 17801 Rev 1

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11

MP45DT01

MEMS audio sensor

omni-directional digital microphone

Features

support

Applications

Description

The MP45DT01 is a compact low-power

microphone built up with a 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 to

produce audio sensors.

The IC interface is manufactured using a CMOS

process that allows to design a dedicated circuit

able to provide a digital signal to the external

world in PDM format.

The MP45DT01 has an acoustic overload point of

120 dBSPL with 58 dB signal to noise ratio.

The MP45DT01 is available in SMD compliant

package and it is guaranteed to operate over an

extended temperature range from -30 °C to +85

°C.

HLGA 4.72 x 3.76 6LD

Table 1.

Device summary

Order code

Temperature range [°C]

Package

Packing

MP45DT01

-30 to +85

HLGA 4.72x3.76 6LD

Tray

MP45DT01TR

-30 to +85

HLGA 4.72x3.76 6LD

Tape and reel

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)