INMP441 Mems Microphone Module [with I2S Interface for Esp32]

INMP441 Mems Microphone Module [with I2S Interface for Esp32]
  • Product Code:SQ8275
  • Availability: In Stock
  • $1.99
  • Ex Tax:$1.99
This product has a minimum quantity of 3

Tags: INMP441, I2S Bus, Omnidirectional Microphone, Mems Microphone, Digital microphone

Omnidirectional microphones are microphones that pick up sound with equal gain from all sides or directions of the microphone. This means that whether a user speaks into the microphone from the front, back, left or right side, the microphone will record the signals all with equal gain. This is in contrast to unidirectional microphones, which pick up sound with high sensitivity only from a specific side. 
The INMP441 is a high performance, low power, digital output, omnidirectional MEMS microphone with a bottom port. The INMP441 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 this module to directly connect to digital processors such as DSPs and microcontrollers without an audio codec. The INMP441 has a high signal to noise ratio. It is an excellent choice for near-field applications. The INMP441 featured a flat wideband frequency response that final results are a high definition of natural sound.

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 of 1.4 mA
High PSR: -75 dBFS
Product size: 30mm x 30mm x 10mm

Interface Definition:
SCK: Serial data clock for I2S interface
WS: Serial data word selection for the 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 a high level, the microphone outputs signals on the right channel
SD: Serial data output of the I2S interface
VCC: Input voltage, 1.8V to 3.3V
GND: power ground

Package Include:
1 x INMP441 Microphone Module

Microphone Features
PSR -75 dBFS
Response Frequency 60 Hz to 15 kHz
Sensitivity - 26 dBFS
SNR 61 dBA
Physical Parameters
Size 30mm x 30mm x 10mm
Weight 36g

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