How does crosstalk influence the jitter of a clock signal?

Area of Science:

• Electrical Engineering
• Signal Integrity
• Electromagnetics

Background:

• Clock signal stability is essential for electronic device operation.
• High-speed systems face clock signal interference from crosstalk.
• Jitter is a key metric for evaluating crosstalk impact.

Purpose of the Study:

• To propose a novel method for assessing crosstalk-induced jitter (CIJ).
• To validate the proposed method using scattering parameters.
• To evaluate the performance of clock signals under crosstalk.

Main Methods:

• Development of a method based on scattering parameters for CIJ assessment.
• Experimental measurement of CIJ for clock signals at 25, 100, and 156.25 MHz.
• Comparison of experimental results with a theoretical model.

Main Results:

• The proposed scattering parameter-based method effectively measures CIJ.
• Experimental measurements of CIJ showed strong agreement with the theoretical model.
• The method's applicability was demonstrated across various clock frequencies.

Conclusions:

• The scattering parameter method provides a reliable way to assess CIJ.
• This technique is valuable for evaluating the performance of electronic circuits and systems.
• Accurate CIJ assessment is vital for maintaining signal integrity in high-speed electronics.