The INMP441 is a high performance, low power, digital output, omnidirectional MEMS microphone with a lower port. Most
The complete INMP441 solution consists of an 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 inmp41 to be connected directly to digital processors such as DSPs and microcontrollers without requiring 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 broadband frequency response that causes a high definition of natural sound.
Technical Specifications:
1. High precision 24-bit data with digital I2S interface
2. The high signal to noise ratio is 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
2. The high signal to noise ratio is 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 description:
- 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 emits a signal on the left channel of the I2S frame.
- When set to high, the microphone will signal on the right channel
- SD: Serial data output of the I2S interface.
- VCC: input power, 1.8V to 3.3V.
- GND: power ground