TDK InvenSense

INMP441 MEMS Microphone

Alias: INMP441 MEMS microphone I2S microphone digital microphone ESP32 audio audio capture
INMP441 MEMS Microphone TDK InvenSense

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