M5Stack® PDM Microphone Unit SPM1423 Pulse Density Modulation Signal Automatic Voice Recording Module Programmable Modul

Description 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 Features I2S PORT PDM encoding output CLK DAT High sensitivity high signal to noise ratio Low power consumption Anti radio frequency interference Compatible with LEGOPackage Included 1x PDM mini Unit 1x HY2 0 4P Cable 5CM Applications Spectrum Analyzer Recoder Loudness meterSpecification ResourcesParameterSensitivity94dB SPL 1KHz Nom 22dBFSSignal to Noise Ratio94dB SPL 1KHz A weighted Nom 61 4dBTotal Harmonic Distortion100dB SPL 1KHz Nom 1 Working voltage range1 6 V to 3 6 VWorking Current600µANet Weight4gGross Weight8gProduct Size24 24 13mmPackage Size35 36 18mmCase materialPlastic PC Related Link SPM1423EasyLoader Click to downloadEasyLoader is a concise and fast program writer which has a built in program related to the product It can be burned to the main control by simple steps to perform a series of function verification Please install the corresponding driver according to the device type M5Core host Please click here to view the CP210X driver installation tut