PDM mini Unit is a digital MEMS silicon-based microphone based on PDM (Pulse Density Modulation) signal. The microphone has high signal-to-noise ratio, high sensitivity, low power consumption, anti-radio frequency interference, smooth frequency response and other characteristics. It automatically switches the microphone state according to the clock frequency (power down/activate/sleep)and can be widely used for audio data collection on wearable devices and smart digital devices.
|Sensitivity||94dB SPL@1KHz Nom.:-22dBFS|
|Signal to Noise Ratio||94dB SPL@1KHz,A-weighted Nom.:61.4dB|
|Total Harmonic Distortion||100dB SPL@1KHz Nom.:1%|
|Working voltage range||1.6 V to 3.6 V|