MP45DT02
MEMS audio sensor omnidirectional digital microphone-
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 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.
Download
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)
- ECOPACK®,RoHS, and “Green” compliant
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS7162: MEMS audio sensor omnidirectional digital microphone
|
5.0 | 357 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN4041: APWlink+ microphone USB demonstration boards based on the MP34DT01, MP45DT02, or MP34DB01
|
2.0 | 1,032 KB |
|
AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx
|
2.0 | 3,511 KB |
|
AN4184: Microphone coupon boards STEVAL-MKI129Vx based on the MP45DT02, MP34DB01, and MP34DT01
|
1.0 | 1,086 KB |
|
AN4211: Guidelines for soldering MEMS digital microphones
|
1.0 | 644 KB |
|
AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones
|
1.0 | 1,572 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-MKI138V1 | MEMS microphone evaluation board based on STM32F107 and MP34DT01 |
| STSW-AUDIO011 | APWorkbench for audio |
Publications and Collaterals
Brochure
| Description | Version | Size |
|---|---|---|
|
Semiconductor solutions for healthcare applications
|
1.0 | 665 KB |
Sample & Buy
Top| Part Number | Marketing Status | Package | Packing Type | Automotive Grade | Order From ST | Unit Price (US$)* @ | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MP45DT02 | Active | HCLGA 4.72X3.76X1.27 | Tray | _ | - |
| Ecopack2 | PDF XML | |||||||||||||||||||||||||||||||
| MP45DT02TR | Active | HCLGA 4.72X3.76X1.27 | Tape And Reel | _ |
| Ecopack2 | PDF 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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