Agilent Technologies HP 8642A/B Especificações Página 392

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I Phase Lock Loop Bandwidth
vs.
Peak Tuning Range
N
X
~o
5
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CO
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1M
100k
10k
1k
100
10
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-
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-
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1
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"1
I I I I I r
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l ! I 1 I I l I I
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1 10 100 1k 10k 100k 1M 10M 100M 1G
Peak Tuning Range
(Hz)
* Lag/Lead Filter Number
Description
This graph illustrates
the
closed Phase Lock Loop Bandwidth
(PLL BW)
chosen
by the
system
as a
function
of the
Peak Tuning Range
of the
source. Knowing
the
approximate closed PLL BW allows
you to
verify that
there
is
sufficient bandwidth
on the
tuning port
and
that sufficient source
isolation
is
present
to
prevent injection locking. (Refer
to
Instr. Params
in
Chapter
2,
Measurement Definitions,
for a
description
of the
Peak Tuning
Range requirements.)
7-26 Quick Reference
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