M5Stack PDM MEMS Microphone

The PDM Mini Unit is a digital MEMS microphone based on silicon that utilizes Pulse Density Modulation (PDM) signals. The microphone features a high signal-to-noise ratio, high sensitivity, low power consumption, resistance to radio interference, and a uniform frequency response. It automatically switches the microphone status according to the clock frequency (power-saving mode/activation/sleep mode) and can be used flexibly for audio data capture on portable devices and smart digital devices.