HP 83480A User Manual

Making Automatic Measurements
Front Panel Measure Section
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Period
For a pulse, this is the measurement of the rst detected edge to the next
detected edge. Edges can be dened as rising or falling, through a dened
threshold (middle). For an eye diagram measured with the color graded
database, the period is the time between crossing points.
Key Path 4
Shift
5
N
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period
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Preshoot
The
deviation
from the
Vbase
signal
prior
to
a
rising
edge
.
K
ey
Path
4
Shift
5
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Preshoot
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Rise Time
Threshold levels (20% to 80%, 10% to 90%, or user-dened) are set in the
Dene Measure menu. The 20% to 80% thresholds are recommended for eye
diagram
analysis
.
Eye
diagrams should
be
measured
from
the
color
graded
database:
4
Displa
y
5
,
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Color
grade
,
on.
Key Path 4
Shift
5
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N
rise
8-8

HP 83480A Specifications

General

Brand	HP
Model	83480A
Category	Measuring Instruments
Language	English