INMP441 MEMS Omnidirectional Microphone Module I2S Interface

INMP441 MEMS Omnidirectional Microphone Module I2S Interface Support ESP32

The INMP441 MEMS Omnidirectional Microphone Module is a high-performance audio sensor designed for precise sound capture in a variety of applications. With its Micro Electro Mechanical Systems (MEMS) technology and I2S interface, this module delivers superior audio quality and is particularly well-suited for use with ESP32 microcontrollers.

Features

• Digital I2S interface with high-precision 24-bit data
• High signal-to-noise ratio of 61 dBA
• High sensitivity -26 dBFS
• Stable frequency response from 60 Hz to 15 kHz
• Low power consumption: low current consumption of 1.4 mA
• High PSR: -75 dBFS

Interface definition

• SCK : Serial data clock of I2S interface
• WS : Serial data word selection for I2S interface
• L/R : left/right channel selection.
• When set to low level, the microphone outputs signals on the left channel of the I2S frame.
• When set to high level, the microphone outputs the signal on the right channel
• SD : Serial data output of I2S interface.
• VCC : Input power, 1.8V to 3.3V.
• GND : power ground

Applications

• Voice Recognition Systems
• Audio Recording Devices
• IoT Projects
• Communication Devices