INMP441 MEMS High Precision Omnidirectional Microphone I2S SNR Low Power Module
The INMP441 is a high-performance, low-power, digital-output, omnidirectional MEMS microphone module designed for advanced audio and voice recognition applications. It integrates a MEMS sensor, signal conditioning, an analog-to-digital converter (ADC), anti-aliasing filters, power management, and a standard 24-bit I²S interface, allowing seamless connection to digital processors without the need for an audio codec.
Key Features:
- Digital I²S interface with high-precision 24-bit data
- High Signal-to-Noise Ratio (SNR) of 61 dBA
- Sensitivity: -26 dBFS
- Flat frequency response from 60 Hz to 15 kHz
- Low current consumption of 1.4 mA
- High Power Supply Rejection (PSR) of -75 dBFS
- Compact surface-mount package: 4.72 × 3.76 × 1 mm
- RoHS/WEEE compliant
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Learn More about MEMS Microphones
For a deeper understanding of MEMS microphone technology and its applications, explore resources like Wikipedia on MEMS Microphones.
Frequently Asked Questions (FAQ)
What is the operating voltage range for the INMP441 module?
The INMP441 operates within a voltage range of 1.8 V to 3.3 V.
Can this module be used with microcontrollers that have an I²S interface?
Yes, the INMP441 is designed to interface directly with microcontrollers and digital signal processors (DSPs) that support the I²S protocol.
Is the INMP441 suitable for far-field voice recognition applications?
While the INMP441 has a high SNR and flat frequency response, it is optimized for near-field applications. For far-field voice recognition, additional signal processing may be required.
Package Includes:
- 1 x INMP441 MEMS High Precision Omnidirectional Microphone Mod