M5 Stack PDM Microphone Unit (SPM1423)
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M5 Stack PDM Microphone Unit (SPM1423) PDM mini Unit is a digital MEMS silicon-based microphone based on PDM (Pulse Density Modulation) signal. The microphone has a 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 the audio data collection on wearable devices and smart digital devices. Applications: Spectrum Analyzer Recorder Noise meter
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SKU#: IOT-2995
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M5 Stack PDM Microphone Unit (SPM1423) PDM mini Unit is a digital MEMS silicon-based microphone based on PDM (Pulse Density Modulation) signal. The microphone has a 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 the audio data collection on wearable devices and smart digital devices. Applications: Spectrum Analyzer Recorder Noise meter
- I2S PORT,PDM encoding output (CLK/DAT)
- High sensitivity, high signal to noise ratio
- Low power consumption
- Anti-radio frequency interference
- Compatible with LEGO
- 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
- Working Current 600µA
- Dimensions 24 x 24 x 13mm
- Weight 8gm