INMP441 Omnidirectional Microphone Module

High-Performance I2S Digital Interface: Outputs raw, uncompressed digital audio directly over an I²S bus, eliminating analog noise pickup and avoiding host-side ADC conversion.

Omnidirectional MEMS Acoustic Capsule: Outfitted with an INMP441 MEMS transducer delivering uniform 360° spatial pickup with high signal-to-noise ratio (61 dBA SNR).

Selectable Left/Right Channel Output: Features a hardware channel configuration pin (L/R) to easily assign left or right audio channels for dual-microphone stereo arrays.

Wide Flat Frequency Response: Provides high acoustic fidelity across a broad 60 Hz - 15 kHz frequency range, ideal for voice capture and ambient noise logging.

Low Power Consumption: Consumes minimal operating current (1.4 mA active), making it ideal for battery-powered IoT devices and portable voice control nodes.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with gold/tin-plated contact header pads and a surface-mount MEMS microphone element.

Technical Specifications:

Operating Supply Voltage: 1.8V - 3.3V DC (3.3V standard).

Communication Interface: Digital I²S (SCK, WS, SD).

Sensitivity: -26 dBFS.

Color: Black Circular PCB with Silver MEMS Capsule and Gold Pins.

Usage Advice: Connect VCC (3.3V), GND, SCK (Clock), WS (Word Select), and SD (Data) to I²S-capable microcontrollers like ESP32 or Raspberry Pi; connect L/R pin to GND for Left channel or 3.3V for Right channel.

Maintenance: Keep the acoustic inlet port clear of dust, flux residue, and liquids; clean surrounding PCB surfaces gently using a dry, soft microfiber cloth.

Essential High-Fidelity Digital Audio Transducer: Position as a top-grade digital microphone module for ESP32 voice assistants, smart speaker arrays, local voice keyword recognition, and IoT sound monitoring.

Highlight Direct Digital I²S Noise Immunity: Emphasize how direct I²S digital telemetry bypasses analog line noise, ground loops, and external pre-amplifier requirements.

Recommended Cross-Sell Add-ons: Pair with MSM261S4030H0 I2S Microphone Module, MP34DT01 PDM MEMS 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 standard high-performance I²S digital MEMS microphone.