Martin Miller, Chief Scientist, LeCroy
Michael Schnecker, Business Development Manager, LeCroy

Multi-lane serial data links are susceptible to crosstalk from adjacent lanes as well as external aggressors. The resulting interference increases the jitter and noise on the victim lanes and can ultimately cause bit errors. While techniques such as network analysis using either TDR or VNA can measure the amount of crosstalk, they cannot directly measure its impact on timing jitter. Jitter measurement devices often mischaracterize crosstalk-induced jitter and do not offer the required insight to measure the amount of jitter due to the aggressor. This paper presents techniques that can be used to accurately measure the amount of jitter contributed by crosstalk independent of other jitter sources.