HP 54620A, User'S And Service Manual

Page: 93 / 243

Dual-Channel Measurements
All three of the dual-channel measurements in the HP 54620A/C—
channel-to-channel delay, setup time, and hold time—are concerned with
measuring the time between edges on two different channels.
Figure 25 shows a channel-to-channel delay measurement. Other
dual-channel measurements have similar softkey menus.
Channel-to-Channel Delay Measurement
Measurement Process
To make a measurement, the analyzer searches across the displayed
waveform from the left side of the screen to the right until it finds a set of
edges that can be used to make the measurement. Thus, you can only
measure things that are displayed (except that Autostore data cannot be
measured). Parts of the waveform not on screen cannot be measured.
Returns to
the main
dual-channel
measurement
menu Select the
end channel
and edge Select the start
channel and
edge Starts the
measurement
The measurement
field shows the delay
is 8 ns
The measurement shown
here measures the time
from the rising edge of
channel 0...
to the rising edge of
channel 1
Figure 25
Making Analyzer Measurements
Ways to measure data
92