Agilent Technologies J-BERT N4903, User Manual

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Value and Units
This text field allows manual entry of the clock rate value. Click inside
this text field and use the numerical keypad or front panel knob to enter
a clock rate value. Complete the entry with a frequency unit by pressing
the
G/n , k/m , M/µ , or X1 front panel key.
Preset List
The Preset list contains clock rate values that are commonly used by the
pattern generator.
Click a preset to select it for the pattern generator clock rate.
Double-click a preset to modify it.
Add Preset Button
Click this button to open the Enter Bit Rate dialog box and add a new clock
rate to the preset list. In this dialog box, you can enter a value, unit and
text description of the new clock rate.
Delete Preset Button
Select a preset clock rate in the Preset list and click this button to remove
it from the list. You can only delete presets that are user-defined.
Sub Rate Clock Divider
This setting controls the pattern generator's Sub Clock Out port.
The Sub Clock Out port is differential, always active, and generates a
fraction of the current clock. The range of the divider is 2, 3, 4, 5, ... 128.
Spread Spectrum Clock
Spread Spectrum Clocking is a licensed option. This setting controls the
pattern generator's spread spectrum (SSC) clocking feature.
When the SSC is enabled, it impacts the Data Out, Clock Out, Sub Clock
Out, and Trigger Out ports.
3
Setting up the Pattern Generator
92 Agilent J-BERT N4903 High-Performance Serial BERT