Teledyne LeCroy SDA III-CompleteLinQ - Manual (Page 17)

Operator's Manual
Signal Inputs
Set Up Signal
Follow these steps to define the characteristics of the input signal to be analyzed.
1. On the menu bar, touch Analysis → Serial Data to open the SDA Framework dialog. Then, touch the
Lane # button for the lane you wish to configure.
2. Touch the Signal Inputs button to open the Signal Inputs dialog.
3. In the Serial Data Input(s) section, if you are using a differential probe, touch the 1 Input (or Diff.
Probe) button.
Press the Input1 button and select an input source from the Select Source pop-up window.
OR
If you are using two single-ended probes to calculate the differential signal, touch the Input1-Input2
button. Input2 will be subtracted from Input1. Touch the Input1 and Input2 buttons and select a
source for each from the Select Source pop-up window.
4. If you want to increase the sampling rate of the signal, touch inside the Upsample by data entry field
and enter the upsample factor at the bottom of the screen.
5. In the Crossing Level section, if you want to set an absolute crossing level, touch inside the Level is
field and choose Absolute from the pop-up menu. Then, touch inside the Abs Level data entry field
and enter the voltage level at which the signal timing is measured . at the bottom of the screen.
OR
If you want to use a relative level set to the selected percentage on each acquisition, touch inside the
Level is field and choose Percent from the pop-up menu. Then, touch inside the Percent Level data
entry field and enter the percentage . at the bottom of the screen.
Note: You can touch the Find Level button to automatically find the level. The level is found by locat-
ing the midpoint between the highest and lowest signal levels in the current acquisition.
6. Touch the Signal Type field and choose a standard signal type from the list. If you choose Custom
from the list of signal types, enter a bit rate in the Nominal Rate field.
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