Description
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 LEGO
Package Included:
- 1x PDM mini Unit- 1x HY2.0 4P Cable(5CM)
Applications:
- Spectrum Analyzer- Recoder- Loudness meter
Specification:
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:
SPM1423
EasyLoader: Click to download
EasyLoader 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 tutorial, M5StickC/V/T/ATOM series can be used without driver)
Schematic: click here to open
Example:
1. Arduin IDEPlease click here to download Arduin Code
