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M5 Stack PDM Microphone Unit (SPM1423)
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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.
1x PDM mini Unit
1x HY2.0 4P Cable(5CM)
| 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 |
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.