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ISD1820 Voice Circuit Data

  • 2013-07-17
  • 49.02KB
  • Points it Requires : 1

ISD1820 Voice Circuit Data ISD1820 Voice Circuit Data, the bias resistor at the bottom of the microphone and the negative end of the 220uF capacitor can be connected to the RECLED end (dashed line). In this way, since the RECLED end is at a high level, the microphone has no voltage or current, and the power consumption of the entire circuit is almost zero. However, the direct mode cannot work in this way

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