MP34DB02TR Datasheet MP34DB02TR | P1-P3

April 2016

DocID026103 Rev 2

1/17

This is information on a product in full production.

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MP34DB02

MEMS audio sensor omnidirectional digital microphone

Datasheet - production data

Features

• Single supply voltage

• Low power consumption

• 120 dBSPL acoustic overload point

• 62.6 dB signal-to-noise ratio

• Omnidirectional sensitivity

• –26 dBFS sensitivity

• PDM single-bit output with option for stereo

configuration

• RHLGA package

− Bottom-port design

− SMD-compliant

− EMI-shielded

− ECOPACK

, RoHS and “Green”

compliant

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

• Antitheft systems

Description

The MP34DB02 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 MP34DB02 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 MP34DB02 is available in a bottom-port,

SMD-compliant, EMI-shielded package and is

guaranteed to operate over an extended

temperature range from -40 °C to +85 °C.

Table 1: Device summary

Part number

Temp.

range [°C]

Package

Packing

MP34DB02TR

-40 to +85

RHLGA 4 LD

(3x4x1) mm

Tape and

reel

Contents

MP34DB02

2/17

DocID026103 Rev 2

Contents

1 Pin description ................................................................................ 5

2 Acoustic and electrical specifications ........................................... 6

2.1 Acoustic and electrical characteristics ............................................... 6

2.2 Timing characteristics ....................................................................... 7

2.3 Frequency response ......................................................................... 8

3 Sensing element .............................................................................. 9

4 Absolute maximum ratings ........................................................... 10

5 Functionality .................................................................................. 11

5.1 L/R channel selection ...................................................................... 11

6 Application recommendations ..................................................... 12

7 Package information ..................................................................... 13

7.1 Soldering information ...................................................................... 13

7.2 RHLGA package information........................................................... 14

8 Revision history ............................................................................ 16

MP34DB02

List of tables

DocID026103 Rev 2

3/17

List of tables

Table 1: Device summary ........................................................................................................................... 1

Table 2: Pin description .............................................................................................................................. 5

Table 3: Acoustic and electrical characteristics .......................................................................................... 6

Table 4: Distortion specifications ................................................................................................................ 6

Table 5: Timing characteristics ................................................................................................................... 7

Table 6: Absolute maximum ratings ......................................................................................................... 10

Table 7: L/R channel selection ................................................................................................................. 11

Table 8: Recommended soldering profile limits ........................................................................................ 13

Table 9: RHLGA 4LD 3x4 mm (metal cap) 0.25 mm port hole package mechanical data ....................... 14

Table 10: Document revision history ........................................................................................................ 16

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P17

MP34DB02TR

Mfr. #:

Buy MP34DB02TR

Manufacturer:

STMicroelectronics

Description:

MIC MEMS DIGITAL PDM OMNI 4RHLGA

Lifecycle:

New from this manufacturer.

Delivery:

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Payment:

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Products related to this Datasheet

MP34DB02TR