Jitter Setup - Procedures - Agilent Technologies J-BERT N4903B User Manual

High-performance serial bert

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Jitter Setup - Procedures

Agilent J-BERT N4903B High-Performance Serial BERT

Specify which delay line (220ps or 610ps) is used for the generation of PJ and

If the 610ps delay line is selected and has any jitter source connected to it, then, it

is not possible to disable SJ/SSC/rSSC on the data output.

Specify the delay between 220ps jitter on Clock and Data.

Do the following to compose the desired jitter:

1 Click Jitter Setup from the Jitter submenu.

This opens the Jitter Setup window.

2 Enable jitter generation by pressing Jitter On/Off button. When this button is

enabled, the LED on the button turns green indicating the jitter active state.

When this button is disabled, no jitter is generated. This refers to all the jitter

types shown on the screen, even if they seem to be connected. The LED on the

buttons will turn orange to indicate this.

The Jitter On/Off button has no impact on SSC. If spread spectrum clocking is

enabled, it continues, even if the Jitter On/Off button is off.

Jitter Tolerance Tests