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Audio decibel level detection meter with driver
Source: InternetPublisher:吃掉星星 Keywords: detector audio driver instrument Updated: 2021/11/14
The power supply of this circuit is very small, less than 5mA, and the single-cell power supply is 6V, making it an ideal choice for portable battery- powered equipment . The small size and low power consumption mask 90dB dynamic range and 10.5μV sensitivity. The DC output voltage is proportional to the input signal level Log10.
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