306 Keysight M8000 Series of BER Test Solutions User Guide
5 Setting up Generator
Residual Spread Spectrum Clock
The Residual Spread Spectrum Clock (rSSC) is generated by modulating
the clock that is used for data generation.
The Residual Spread Spectrum Clock is characterized by:
• rSSC Amplitude
• rSSC Frequency
It has the following parameters:
• rSSC State: Click this button to enable/disable the Residual Spread
Spectrum Clock.
• rSSC Amplitude: This is the amplitude of the rSSC jitter source.
• rSSC Frequency: This is the frequency of the rSSC jitter source.
External Jitter Source
To enable the external jitter source:
•From the Data Out port select HF Jitter functional block in the
Parameters window.
•Click the External switch to enable external jitter.
Even if the external jitter source is enabled, you can still add or change
internal jitter components.
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