Transmission line losses—driven by skin effect and dielectric properties—play a critical role in degrading high-speed signal integrity and eye performance.
Transmission line loss directly affects eye diagram quality, with around −12 dB at Nyquist marking the limit before signal integrity rapidly degrades without equalization.
Patrick Connally joined Teledyne LeCroy in 2013. He guides development of high-bandwidth oscilloscopes and signal analysis methodologies for high-speed serial communications applications. He received his PhD from Queen’s University Belfast in 2006.
Characterizing PDN noise—whether from self-aggression, board coupling, or mutual aggressors—is essential to maintaining millivolt-level power integrity margins.
Board pollution noise arises when switching activity and VRM ripple couple onto PCB power planes, and spectral analysis can reveal the dominant aggressors.
