INMP441 MEMS High Precision Omnidirectional Microphone I2S SNR Low Power Module


This module is ideal for applications where high-quality audio capture is required, such as voice recognition, audio recording, and other audio sensing applications.


The INMP441 MEMS Omnidirectional Microphone Module is a high-performance digital microphone with a variety of features that make it suitable for various applications. It has a digital I2S interface with a high-precision 24-bit data output. 
The module has a high signal-to-noise ratio, high sensitivity, and a stable frequency response from 60 Hz to 15 kHz. 


Features: 
Digital I2S interface with 24-bit data
The high signal-to-noise ratio of 61 dBA
High sensitivity of -26 dBFS
Stable frequency response from 60 Hz to 15 kHz
Low power consumption: 1.4 mA
High PSR (Power Supply Rejection): -75 dBFS


Interface Definition: 
SCK: Serial data clock for I2S interface
WS: Serial data word selection for I2S interface
L/R: Left/Right channel selection (microphone output channel)
SD: Serial data output of the I2S interface
VCC: Input power (1.8V to 3.3V)
GND: Power ground


Connection with ESP32: 
SCK: GPIO14
SD: GPIO32
WS: GPIO15
L/R: GND
GND: GND
VDD: VDD3.3


Package Includes: 
1 x INMP441 MEMS Microphone Sensor Module