MP34DB01
MEMS audio sensor omnidirectional digital microphone-
Active
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 -40 °C to +85 °C.
Download
Datasheet
Key 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
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS6940: MEMS audio sensor omnidirectional digital microphone
|
8.0 | 321 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-MKI116V1 | MEMS microphone demonstration board based on the MP34DB01 and STM32 |
| STSW-AUDIO011 | APWorkbench for audio |
Publications and Collaterals
Flyer
| Description | Version | Size |
|---|---|---|
|
MEMS digital microphones
|
1,915 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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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MP34DB01 | Active | RHLGA 4 3x4x1.0 | Tray | _ | - |
| Ecopack2 | PDF XML | |||||||||||||||||||||
| MP34DB01TR | Active | RHLGA 4 3x4x1.0 | 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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