TDK InvenSense
INMP441 MEMS Microphone
Alias: INMP441 、 MEMS microphone 、 I2S microphone 、 digital microphone 、 ESP32 audio 、 audio capture
Specifications
Type Omnidirectional MEMS Digital Microphone
Interface I2S (digital audio output, no ADC required)
Operating Voltage 1.8V ~ 3.3V
Frequency Response 60Hz ~ 15kHz
SNR 61dBA
Sensitivity -26dBFS (typical)
Pickup Pattern Omnidirectional
Bit Depth 24 bit
Channel Select L/R pin: GND = left channel, 3.3V = right channel
Pin Definition VDD(1.8~3.3V), GND, SD(I2S data output), WS(word select/frame sync), SCK(bit clock), L/R(channel select, must not float)
Applications ESP32 audio capture, spectrum analysis, voice recognition, DIY audio projects