User guide

These settings are used for data collection. Changes here require the test
to be run again. See “Parameters Tab” on page 252 for details.
– Pass/Fail tab
These settings determine whether the calculated results are recognized as
passed or failed. However, a new test run is not required when doing
changes here. See “Pass/Fail Tab” on page 254 for details.
– View tab, Graph tab, and Color tab
All settings on these tabs only affect the way the data is displayed. You do
not need to run the measurement again. See “View Tab” on page 256,
“Graph Tab” on page 258, and “How to Change the Colors of the Graph”
on page 232 for details.
3
Press OK when you have made all required changes to close the Properties
dialog box.
DUT Output Timing/Jitter - Reference
The DUT Output Timing/Jitter measurement returns the results in a graphical and
in a numerical form. The following sections describe the results:
• They provide explanations of the measured parameters and the display options
that are specific to this measurement.
• Additionally, some information is provided to explain the theoretical
background behind the jitter calculations.
T I P
You have access to the user documentation (including User's Guide) over the
instrument's Start menu: Start->Programs->N4900 Series Documents.
Properties that can be specified on the various tabs of the Properties dialog box:
Parameters Tab
N O T E
If you modify the parameters on this page, you have to rerun the measurement to
update the results.
Set the criteria for moving to the next sample point:
• Number of Compared Bits
After this number of compared bits, the measurement stops for the current
sample point and moves to the next one.
6 Advanced Analysis
252 Agilent J-BERT N4903B High-Performance Serial BERT