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Tektronix 475A User Manual

Tektronix 475A
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PULSE JITTER
Pulse
jitter
is
displayed as
the
slight horizontal move-
ment
of
a pulse
and
includes
the
inherent
jitter
of
the
delayed sweep.
1.
Obtain
a Normal Sweep Display (refer
to
Basic
Oscilloscope Displays section
of
this manual). Ensure
that
the
VAR TIME/DIV switch
is
in
the
calibrated
detent.
2.
Set
the
8 TIME/DIV switch
to
intensify
the
full
rising
portion
of
the
pulse.
3.
Set
the
HORIZ DISPLAY switch
to
B DLY'D.
4.
Referring
to
Figure
23,
measure
the
distance between
Point A and Point 8
in
divisions and calculate
the
pulse
jitter
time
using
the
following
formula:
Pulse
Jitter
Time
horizontal 8 TIME/DIV
difference X switch
(divisions) setting
.•
!
"'
"
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MEASURE
TIME
FROM
ATOB
-~
r--......
®-
~I.
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T
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j
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I I
-
-----j
!-
JITTER
Figure
23.
Pulse
jitter.
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1738-34
DELAYED SWEEP MAGNIFICATION
USING ALT SWEEP DISPLAY
The
delayed sweep features
of
the
4658
can
be used
to
provide higher
apparent
magnification
than
is
provided by
@
465B/DM44
Operators
55

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Tektronix 475A Specifications

General IconGeneral
BrandTektronix
Model475A
CategoryMeasuring Instruments
LanguageEnglish

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