The INMP441 is a high-performance,
low-power, digital output, omnidirectional MEMS microphone with a bottom port.
The complete INMP441 solution consists of a MEMS sensor, signal conditioning,
analog to digital converter, anti-aliasing filter, power management, and
industry-standard 24-bit I2S interface. The I2S interface allows the
INMP441 to be directly connected to digital processors such as DSPs and
microcontrollers without the need for an audio codec for use in the system. The
INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field
applications. The INMP441 has a flat wideband frequency response that results
in a high definition of natural sound.
Features:
Digital I2S interface with high
precision 24-bit data
High signal to noise ratio is 61 dBA
High sensitivity – 26 dBFS
Stable frequency response from 60 Hz
to 15 kHz
Low power consumption: low current
consumption 1.4 mA
High PSR: -75 dBFS
Resources:
1. ESP32 Mic Testing With INMP441 and DumbDisplay
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