Key features

• Digital I2S interface with high-precision 24-bit data
• Omnidirectional bottom-port MEMS sensor
• High signal-to-noise ratio of 61 dBA
• High sensitivity of -26 dBFS
• Stable flat frequency response from 60 Hz to 15 kHz
• Low power consumption with current draw of only 1.4 mA
• High power supply rejection (PSR) of -75 dBFS
• Direct connection to digital processors without audio codec
• Compact surface-mount package for space-constrained designs
• Easy integration with ESP32, Arduino, Raspberry Pi, and STM32

Good to know

• This is a bottom-port microphone; ensure the sound inlet hole on the PCB is not obstructed by tape, glue, or enclosure walls.
• Operates at 1.8V to 3.3V logic; use a level shifter if interfacing with 5V microcontrollers.
• L/R pin selects the I2S channel: connect to GND for left channel, or VDD for right channel.
• Requires a microcontroller or processor with I2S peripheral support for proper operation.
• Avoid exposing the microphone to moisture, dust, or mechanical shock.
• Refer to your microcontroller’s I2S pin mapping for correct SCK, WS, and SD wiring.