Inmp441 Omnidirectional Microphone Module Mems High Precision Low Power Consumption I2s Interface Support Esp32
INMP441 is a high performance, low power consumption, digital output, omnidirectional MEMS microphone with bottom port. The
The complete INMP441 solution consists of a MEMS sensor, signal composition conditioning, analog-to-digital converter, anti-aliasing filter, power management and industry standard 24-bit I²S interface. The I²S interface allows INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for the audio codec used in the system. 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.
1. Digital I²S interface with high-precision 24-bit data
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 of 1.4 mA
6. High PSR: -75 dBFS
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