ST Life.augmented

MP45DT02

MEMS audio sensor omnidirectional digital microphone
  • active Active

The MP45DT02 is a compact, low-power, top-port, omnidirectional, digital MEMS microphone. The MP45DT02 is built with a sensing element and an IC interface with stereo 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 designing a dedicated circuit able to provide a digital signal externally in PDM format.

The MP45DT02 has an acoustic overload point of 120 dBSPL with a best on the market 61 dB signal-to-noise ratio and -26 dB sensitivity.

The MP45DT02 is available in an SMD-compliant package metal (M) or plastic and is guaranteed to operate over an extended temperature range from -30 °C to +85 °C.

The MP45DT02’s digital output and package size (1.25 mm thick) make this device the best solution for laptop and portable computing applications.

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Errata Sheet
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Datasheet

Key Features

  • Single supply voltage
  • Low power consumption
  • 120 dBSPL acoustic overload point
  • Omnidirectional sensitivity
  • PDM single-bit output with option for stereo configuration
  • HLGA package (SMD-compliant) plastic or metal
  • ECOPACK®,RoHS, and “Green” compliant

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS7162: MEMS audio sensor omnidirectional digital microphone
7.0 404 KB

Application Notes

Description Version Size
pdf
AN4041: APWlink+ microphone USB demonstration boards based on the MP34DT01, MP45DT02, or MP34DB01
2.1 1,032 KB
pdf
AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx
2.0 3,511 KB
pdf
AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01
1.0 1,086 KB
pdf
AN4211: Guidelines for soldering MEMS microphones
1.1 644 KB
pdf
AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones
1.0 1,572 KB
pdf
AN4426: Tutorial for MEMS microphones
1.1 1,010 KB
pdf
AN4427: Gasket design for optimal acoustic performance in MEMS microphones
1.1 1,132 KB
pdf
AN4428: Best practices in the manufacturing process of MEMS microphones
1.1 1,027 KB

Presentations & Training Material

Presentations

Description Version Size
pdf
ST offering in Wearable - Analog and Mixed Signal Portfolio
1,508 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STEVAL-MKI117V2 MEMS microphone demonstration board based on the MP45DT02 and STM32
STEVAL-MKI126V1 STSmartVoice demonstration board based on MP45DT02
STEVAL-MKI129V1 Microphone coupon board based on the MP45DT02 digital MEMS microphone
STEVAL-MKI138V3 STAudioHub USB interface board based on MP45DT02 and STM32

Publications and Collaterals

Flyer

Description Version Size
pdf
APWorkbench software for audio ICs and MEMS microphones
2,349 KB
pdf
MEMS analog and digital microphones
1,669 KB

Brochure

Description Version Size
pdf
Semiconductor solutions for healthcare applications
1.0 665 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
MP45DT02ActiveHCLGA 4.72X3.76X1.27Tray_-Distributor reported inventory date: 2014-11-22
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE50
Ecopack2PDF
XML
MP45DT02TRActiveHCLGA 4.72X3.76X1.27Tape And Reel_-Distributor reported inventory date: 2014-11-24
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA5004000
P&SOrder NowASIA/PACIFIC501
Farnell Element14Order NowEUROPE16321
DIGIKEYOrder NowWORLDWIDE20531
MOUSEROrder NowWORLDWIDE36491
Ecopack2PDF
XML

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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