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Principles of Analog Electronics
book

Principles of Analog Electronics

by Giovanni Saggio
January 2014
Intermediate to advanced content levelIntermediate to advanced
567 pages
23h 13m
English
CRC Press
Content preview from Principles of Analog Electronics
Frequency Domain
233
that is, it is the negative of the rate of change of phase with angular frequency,
which has units of time. Practically τ furnishes the way to determine the delay of
signals through the lter, being the amount of time a signal takes to pass through
the lter. So given the transfer function previously determined
1
1
=
v
vj
RC
o
s
we have
1
222
()
τω =
ω+
RC
RC
therefore the group delay varies with the frequency. For the special case of ω =0
we have τ = RC, while τ reduces with frequency. Ideally, we would have that all
frequencies of the input signal should have the same time delay, so to avoid distor-
tions but, as we demonstrated, in ...
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Publisher Resources

ISBN: 9781466582026