Inmp441 Full -directional microphone module MEMS high -precision low power consumption I2S interface supports ESP32

Information download: https://pan.baidu.com/s/1bq5_qecsil2uoh7wsf_ifg

Product introduction:

INMP441 is a high -performance, low power consumption, digital output, and full -direction MEMS microphone with the bottom port.Should

The complete INMP441 solution consists of a MEMS sensor, signal composition, mold converter, anti -hybrid filter, power management and industry standard 24 -bit I²S interface.The I²S interface allows INMP441 to directly connect to the digital processor, such as DSP and microcontrollers, and does not need to use audio codecs used in the system.INMP441 has a high signal -to -noise ratio and is an excellent choice of near -field application.INMP441 has a flat width band frequency response, resulting in high definition of natural sound.

Product characteristics:

1. Digital I²S interface with high -precision 24 -bit data

2. The high signal -to -noise ratio is 61 DBA

3. High-sensitivity -26 DBFS

4. Stable frequency response from 60 Hz to 15 kHz

5. Low power consumption: low current consumption 1.4 mA

6. High PSR: -75 DBFS

Interface definition:

SCK: serial data clock of I²s interface

WS: Selection of serial datawords for I口S interface

L/R: Left/right. Select.

Set to low -electricity, and the microphone output signal at the left sound of the I²S frame.

Set to high -electricity, the microphone outputs the signal on the right sound

SD: serial data output of I 接S interface.

VCC: Input power, 1.8V to 3.3V.

GND: Powerland

This product provides a tutorial with the ESP32 module with I2S functions

Connect to the ESP32 Development Board of Our Store:

Inmp441 ESP32 development board

SCK >>GPIO14
SD >>GPIO32
WS >>GPIO15
L/R >>GND
GND >>GND
VDD >>VDD3.3