MP34DB01MEMS audio sensor omnidirectional digital microphone
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.
- 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
- ECOPACK®, RoHS and “Green” compliant
DS6940: MEMS audio sensor omnidirectional digital microphone
AN4041: APWlink+ microphone USB demonstration boards based on the MP34DT01, MP45DT02, or MP34DB01
AN4146: STSmartVoice demonstration board STEVAL-MKI126Vx
AN4184: Microphone coupon boards STEVAL-MKI129Vx /MKI155Vx based on digital microphones
AN4211: Guidelines for soldering MEMS microphones
AN4227: Audio hub demonstration kit supporting the M45DT02, MP34DB01, and MP34DT01 microphones
AN4426: Tutorial for MEMS microphones
AN4427: Gasket design for optimal acoustic performance in MEMS microphones
AN4428: Best practices in the manufacturing process of MEMS microphones
Presentations & Training Material
ST offering in Wearable - Analog and Mixed Signal Portfolio
Related Tools and Software
Related Tools and Software
|STEVAL-MKI116V1||MEMS microphone demonstration board based on the MP34DB01 and STM32|
|STEVAL-MKI126V2||MEMS microphone evaluation board based on STA321MPL and MP34DB01 (microphone processor + digital uPhone MEMS)|
|STEVAL-MKI129V2||Microphone coupon board based on the MP34DB01 digital MEMS microphone|
|STEVAL-MKI138V2||STAudioHub USB interface board based on MP34DB01 and STM32|
Publications and Collaterals
APWorkbench software for audio ICs and MEMS microphones
MEMS analog and digital microphones
Sample & BuyTop
|Part Number||Marketing Status||Package||Packing Type||Automotive Grade||Order From ST||Unit Price (US$)*|
|Distributor Availability||RoHS Compliance Grade||Download
|MP34DB01||Active||RHLGA 4 3x4x1.0||Tray||_||-|
|MP34DB01TR||Active||RHLGA 4 3x4x1.0||Tape And Reel||_|
(*) 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.