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System control ribbon -- analysis tab – Teledyne LeCroy PeRT3 Phoenix System User Manual

Page 64

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62

Teledyne LeCroy

System Control Ribbon ‐‐ Analysis Tab


Other Channel

If Other Channel is selected, the test will run on the specified channel until the tests on
the other channels that are currently running terminate. Typically you would select this
option when doing "victim/aggressor" testing and you want to send a specific pattern on
the "aggressor" channels while testing the effects of cross‐talk on the "victim" channel.
At least one active channel should have a specific termination criteria. Setting all
channels to terminate on Other Channel would be the equivalent of specifying Run
Forever
.

Manual Stop Only

If Manual Stop Only is selected, the test will run on the specified channel until it is
stopped manually.

Note:

The test termination conditions can be channel‐specific. If different termination conditions are

selected on different channels, the test will continue to run until all termination conditions on all
channels have been met.

Eye Preview

The Eye Preview panel provides a calculated simulation of the expected jitter eye diagram
as it would be displayed on an oscilloscope. The eye preview is useful for quickly
determining the approximate level of signal impairment based on the current system
settings (see

Figure 6.22 on page 62

).

Note the simulated Eye Preview does not include the affects of low frequency SJ because
this affect is typically cancelled out by a PLL and does not generally show up on most
scope eye diagrams. Also, including this affect in the calculated eye diagram is generally
not useful as it often results in a completely closed eye.

Figure 6.22: Eye Preview Panel

System Control Ribbon -- Analysis Tab

For discussion of the controls available under the Analysis tab, see

“Analysis and Reports”

on page 93

.