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Additional
Digital circuit
English Wikipedia - The Free Encyclopedia
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Digital electronics
Digital electronics
or
digital (electronic) circuits
are
electronics
that handle
digital signals
- discrete bands of
analog
levels
- rather than by
continuous
ranges (as used in
analogue electronics
). All levels within a band of values represent the same numeric value. Because of this
discretization
, relatively small changes to the analog signal levels due to
manufacturing tolerance
,
signal attenuation
or
parasitic noise
do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.
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