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Analog Electronics
book

Analog Electronics

by Ian Hickman
October 2013
Intermediate to advanced content levelIntermediate to advanced
342 pages
16h 43m
English
Newnes
Content preview from Analog Electronics
14 4
Analog Electronics
ΓπΠ
o VHP
«LP
>— O
rrm
oP
(b)
ΓΓτη
VßP-
Qvi
Voltage rector
diagram
vgp
Current vector
diagram for
point X
'BP
'LP
Vlp
(c)
Figure
6.10 Mor e second-orde r filter sections .
(a) Thre e op-am p form of SVF.
(b) The biquadrati c second-orde r section . If the biquadrati c filter is tuned by adjustin g the two resistor s /?, then Q is
proportiona l to ωc. This provide s a constan t bandwidt h response . Owin g to the input point chosen , the biquadrati c filter
has no high-pas s output , but on-tun e band-pas s gain is independen t of frequency .
(c) Vecto r diagram s at ω = ωc for the biquadrati c section .
Active signal ...
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Publisher Resources

ISBN: 9781483162287