Teledyne LeCroy Eye Doctor II - Manual (Page 9)

Operator's Manual
Input to SDAII
When using an Eye Doctor II output signal as the source input for SDAII processes, choose Input1
EDrOut. This is not necessary when using SDAIII-CompleteLinQ, since the Eye Doctor capabilities are inte-
grated into the SDA signal processing flow:
1. In the Signal Input dialog of SDA II, set the mode to 1 Input.
2. Set Input1 to be EDrOut.
Note: This takes the output from Eye Doctor II and uses it as the input to SDA II.
When using the Eye Doctor II clock recovery capability for SDA II processes, the steps below are
also required.
3. On the Clock Recovery dialog of SDA II, make sure the Use Explicit Clock Reference checkbox is
checked.
4. Also, on the Clock Recovery dialog of SDA II, turn off the PLL by clearing the PLL On checkgox. (A
PLL has already been used to recover the clock in the Eye Doctor II Clock Recovery section.)
5. On the Reference Clock Input dialog of SDA II, set the mode to Clock+ Only.
6. Set the Clock Ref + value to EDrClock.
At this point, the Eye Doctor II clock and data output waveforms are set as the inputs for SDAII. Now eye
and jitter analysis can be performed on the signals previously processed by Eye Doctor II.
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