HP 83480A User Manual

How the Instrument Works
Standard and Enhanced Trigger Modes
Figure
13-19.
10
Gb/s
digital
eye
diagram
with
a
1ms
gating
pulse.
Note
the
appearance
of
unexpected
data
points
within
the
eye
.
These
are
the
result
of
false
triggers
on
the
gate
enable
rising
edge
.
Since
the
gating
signal
is
completely
asynchronous with
the
trigger
signal,
the
required
condition
for
false
triggers
occurs
frequently.
The
number
of
false
triggers
can
be
reduced
by
synchronizing
the gate
enable
rising
edge
with
the
clock.
If
one
could
ensure
that
the gate
enable would
only
be
asserted
when
the
trigger
input
was
low
,
no
false
triggers
would
occur
.
Figure
13-20
shows
the
result
of
triggering
the
low
speed
gating
pulse
generator
from
the
10
Gb/s
pattern
generator
.
13-31

HP 83480A Specifications

General

Brand	HP
Model	83480A
Category	Measuring Instruments
Language	English