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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
Passive signal processing and signal transmission 115
R/2
R/2 R
G/2
-o o-
(a)
G/2
cH
hr-[=3^
Τ pad
2/V
Rs
^0 = ^0
each way o-
(b)
-o
2N
Ϊ
X
(c)
π pad
Coaxial ^ V*
connector
lb
34
Screen Scree n
IdB 2 dB 2 dB 5dBl()dB20dB 20 dB
(d)
Figure
5.2 Attenuators.
(a) Lossy line section used as an attenuator. Z,, = V(/?/G) and a = V(/?G), only true for small a (in nepers: see text).
(b) Attenuator design in exponential form: R, = Ro tanh a/2, Rp = /?„/sinha, true for all α (in nepers).
(c) Attenuator design in terms of input/output voltage ratio N: attenuation D = 201ogio Ν dB.
(d) 0-60 dB attenuator with 1 dB steps.
2
The attenuation constant α increase ...
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Publisher Resources

ISBN: 9781483162287