INMP441 Omnidirectional Microphone Module MEMS High-Precision Low-Power I2S Interface Supports ESP32Item NO.: INMP441
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- Product Name: INMP441 Omnidirectional Microphone Module MEMS High-Precision Low-Power I2S Interface Supports ESP32
- Item NO.: INMP441
- Weight: 0.1 kg = 0.2205 lb = 3.5274 oz
- Category: Electronic Modules > Sensor Module
- Tag: INMP441 , Omnidirectional Microphone Module
- Creation Time: 2024-04-15
INMP441 Omnidirectional Microphone Module
Product Introduction:
INMP441 is a high-performance, low-power, digital output, omnidirectional MEMS microphone with bottom port. The complete INMP441 solution for this module consists of a MEMS sensor, signal composition adjustment, analog-to-digital converter, anti aliasing filter, power management, and industry standard 24 bit I ² S interface. I ² The S interface allows INMP441 to be directly connected to digital processors such as DSPs and microcontrollers, without the need for audio codecs used in the system. The INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. INMP441 has a flat broadband frequency response, resulting in high definition of natural sound.
Product Characteristics:
1. Digit I with high-precision 24 bit data ² S interface
2. High signal-to-noise ratio of 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：I ² Serial data clock of S interface
● WS: for I ² Serial Data Word Selection for S Interface
● L/R: Left/right channel selection.
Set to low battery level, microphone at I ² Left channel output signal of frame S.
Set to high level, microphone outputs signal on the right channel
●SD：I ² Serial data output of the S interface.
● VCC: Input power supply, 1.8V to 3.3V
● GND: power ground
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