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1. Interface digital I2S com dados de 24 bits de alta precisão
2. A relação alta do sinal ao ruído é 61 dBA
3. Alta sensibilidade-26 dBFS
4. Resposta de frequência estável de 60Hz a 15 kHz
5. Consumo da baixa potência: baixo consumo atual 1,4 mA
6. PSR alto: -75 dBFS
Definição interface:
SCK: Data clock serial para interface I2S
WS: Seleção serial palavra dados para interface I2S
L/R: Seleção do canal esquerdo/direito.
Quando definido para baixo, o microfone emite um sinal no canal esquerdo do quadro I2S.
Quando definido para alto nível, o microfone emite sinais no canal direito
SD: Saída de dados seriais da interface I2S.
VCC: Potência de entrada 1.8V a 3.3V.
GND: terra do poder
The INMP441 mems sensor is a high-performance, low-power digital I2S output omnidirectional MEMS microphone. Built on a compact footprint, this module is specifically designed for advanced audio and voice recognition applications. With its inherent low-noise and high Signal-to-Noise Ratio (SNR) attributes, it offers crystal-clear audio capture even in challenging environments. Its compatibility with the I2S interface, a standard used for transmitting digital audio between devices, ensures that it can be integrated into a diverse range of audio processing setups. The INMP441 microphone module is an invaluable component for developers looking to incorporate superior audio input capabilities into their projects.
INMP441 Pinout
The INMP441 microphone modules have six pins, three on each side as shown in the above pinout image. The inmp441 pins on the module are spaced in such a way that it can be easily mounted on a breadboard. The pin definition for INMP441 microphone module is shown below.
|
PIN |
FUNCTION |
|
SCK |
Serial-Data Clock for I²S Interface |
|
SD |
Serial-Data Output for I²S Interface. This pin tri-states when not actively driving the |
|
WS |
Serial Data-Word Select for I²S Interface |
|
L/R |
Left/Right Channel Select. When set low, the microphone outputs its signal in the left channel |
|
VDD |
Power, 1.8 V to 3.3 V |
|
GND |
Ground. |
Features of INMP441Microphone Module
- Digital I²S Interface with High-Precision 24-Bit Data
- High SNR of 61 dBA
- High Sensitivity of -26 dBFS
- Flat Frequency Response from 60 Hz to 15 kHz
- Low Current Consumption of 1.4 mA
- High PSR of -75 dBFS
- Small 4.72 × 3.76 × 1 mm Surface-Mount Package
- Compatible with Sn/Pb and Pb-Free Solder Processes
- RoHS/WEEE Compliant
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