INMP441 MEMS High Precision Omnidirectional Microphone Module I2S
The INMP441 is a high-performance digital MEMS microphone module featuring a 24-bit I2S interface, designed for direct integration with digital processors like ESP32, STM32, and Raspberry Pi. It delivers omnidirectional sound capture with a wide 60 Hz to 15 kHz frequency response for high-definition audio applications.
Features
- Digital 24-bit I2S interface for direct connection to microcontrollers and DSPs
- High signal-to-noise ratio of 61 dBA for clear audio capture
- Omnidirectional MEMS sensor with a flat frequency response from 60 Hz to 15 kHz
- Low power consumption of 1.4 mA, suitable for battery-powered devices
- Wide operating voltage range of 1.8V to 3.3V for 3.3V logic system compatibility
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The INMP441 MEMS microphone module integrates a complete audio acquisition system, including the MEMS sensor, signal conditioning, an analog-to-digital converter, and an anti-aliasing filter. Its industry-standard I2S serial interface outputs high-precision 24-bit digital audio data, eliminating the need for an external audio codec and simplifying integration with digital signal processors and microcontrollers.
Engineered for near-field applications, the module offers a high sensitivity of -26 dBFS and a Power Supply Rejection (PSR) of -75 dBFS, ensuring stable performance even in electrically noisy environments. The bottom-port design and omnidirectional pickup pattern make it ideal for embedded systems requiring compact, high-fidelity audio input.
Additional Information
| Weight | 0.02 kg |
|---|---|
| Dimensions | 6 × 5 × 3 cm |
