INMP441 MEMS Omnidirectional Microphone Module High Precision/SNR Low Power I2C Interface Supports ESP32

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. Here are the features and specifications:

  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

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