Analog versus Digital
نویسنده
چکیده
In the digital world we distinguish two discrete values a signal can have, 0 or 1, and these values correspond to certain voltages. The mapping between the voltage on a point and the digital value it represents is determined by the electronics family the circuit is built in and the supply voltage [1]. This chart gives the HIGH (often “1”) and LOW (often “0”) values and thresholds for most logic families. We can learn from this that the lower the supply voltage is, the lower the voltage margin between a HIGH and a LOW signal is.
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