Omnidirectional Microphone Module INMP441

🔹 INMP441 Omnidirectional MEMS Microphone Module – I2S Digital Output

The INMP441 is a high-performance, low-power MEMS microphone with a digital I²S interface. It features a flat frequency response, high SNR, and bottom-port design, making it ideal for near-field voice capture in IoT and wearable devices.

✅ Specifications:

• Acoustic Sensor: Omnidirectional MEMS

• Interface: Digital I²S (24-bit)

• Sensitivity: -26 dBFS ± 3 dB @ 1kHz, 94dB SPL

• SNR: 61 dBA

• Frequency Response: 60 Hz – 15 kHz

• Supply Voltage: 1.8V – 3.3V DC (DO NOT USE 5V)

• Current Consumption: 1.4 mA (typ.)

• Operating Temperature: -40°C to +85°C

• Module Pins: SCK, WS, SD, L/R, VDD, GND

📦 Features:
✔️ 24-bit I²S digital output – no ADC needed
✔️ Low power – ideal for battery-powered devices
✔️ Flat frequency response – clear, natural sound
✔️ Omnidirectional pickup – captures sound from all directions
✔️ Compact module – easy to integrate

📦 Applications:
✔️ Voice recognition and audio processing
✔️ Teleconferencing and remote controls
✔️ Smart home and IoT devices
✔️ Wearable technology
✔️ Portable audio devices