Teledyne LeCroy Eye Doctor II - Manual (Page 37)

Operator's Manual
Case 2, with CTLE equalization which will be used for clock recovery
Now touch Clock Recovery and on the dialog shown, touch Find Frequency.
Next, change Data Path to DFE In to From Input, so the CTLE is applied only on the path to Clock Recov-
ery. The Eye diagram once again looks closed, and since the Clock Recovery is now operating correctly,
we can be sure it is closed. Here is the correctly clocked closed Eye:
Case 2, correctly clocked closed eye. No equalization applied on the data path.
Finally, touch DFE showing the DFE dialog to Enable, and then Train the DFE.
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