xcluma INMP441 Omnidirectional High Precision MEMS Microphone Module I2S Support Electronic Components Electronic Hobby Kit

• The INMP441 MEMS Omnidirectional Microphone Module is a high performance, low power, digital output, omnidirectional MEMS microphone with 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 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 • Interface definition • SCK: Serial data clock for I2S interface • WS: Serial data word selection for I2S interface • L/R: Left/Right channel selection. • When set to low, the microphone outputs a signal on the left channel of the I2S frame. • When set to high level, the microphone outputs signal on the right channel • SD: Serial data output of the I2S interface. • VCC: Input power, 1.8V to 3.3V. • GND: power ground