MP34DT01 PDM MEMS Microphone Module

High-Performance PDM Digital Output: Streams digital Pulse Density Modulation (PDM) audio data, bypassing analog noise pickup and internal host ADC latency for clean digital signal ingestion.

Omnidirectional Acoustic MEMS Architecture: Built with STMicroelectronics' MP34DT01 MEMS sensor, providing a uniform 360° spatial pickup field with high signal-to-noise ratio (63 dB SNR).

Selectable Dual-Channel Sampling (SEL Pin): Features a channel select configuration terminal (SEL) allowing easy designation of Left or Right audio channels for stereo dual-microphone arrays.

Low Power & High Acoustic Overload Point: Operates efficiently with low power consumption while handling high sound pressure levels (120 dBSPL) without signal clipping.

Compact Breakout Form Factor: Compact PCB layout outfitted with standard 0.1'' (2.54 mm) header terminals for simple solderless breadboard testing and custom PCB mounting.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with gold/tin-plated contact pads, onboard decoupling capacitors, and top-port MEMS microphone package.

Technical Specifications:

Operating Voltage: 1.64V - 3.6V DC (3.3V standard).

Communication Interface: Digital PDM (CLK, DAT, SEL).

Acoustic Overload Point: 120 dBSPL.

Color: Blue PCB with Silver MEMS Capsule and Gold/Silver Pin Contacts.

Usage Advice: Connect VCC (3.3V), GND, CLK (Clock), and DAT (Data) to PDM-compatible microcontrollers like STM32, ESP32, or Nordic nRF Series; tie SEL to GND for Left channel or VCC for Right channel.

Maintenance: Keep the top acoustic inlet hole free of dust, flux residue, and liquids; clean surrounding PCB areas gently using a soft, dry microfiber cloth.

Essential High-Fidelity PDM Digital Microphone: Position as a top-grade digital MEMS microphone for ESP32/STM32 speech processing, digital voice assistants, noise-monitoring arrays, and embedded AI audio analytics.

Highlight PDM Digital Noise Immunity: Emphasize how direct Pulse Density Modulation telemetry eliminates analog line noise, ground loops, and discrete pre-amp requirement in custom audio hardware.

Recommended Cross-Sell Add-ons: Pair with MSM261S4030H0 I2S Microphone Module, INMP441 Omnidirectional Microphone Module, Microphone Sound Sensor Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Sound Sensor Modules collection page as your high-performance PDM digital MEMS microphone.