DC25_SLIDES_TRACK13_TutorialHowInterconnectsWork_CrosstalkAnatomyAndQuantification_Shlepnev.pdf

1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025Santa Clara Convention Center1ExpoJanuary 2930,2025Information Classification:GeneralHow Interconnects Work:Crosstalk Anatomy and QuantificationYuriy Shlepnev,Simberian Inc.2Date:Tuesday,January 28 9:00 AM-11:30 AM Pacific TimeL

2、ocation:Ballroom DUpdate of this presentation and some solutions are at https:/ Classification:GeneralIntroductionBasics:Fields and S-parametersCrosstalk Anatomy-Qualitative AnalysisCrosstalk QuantificationDistant Crosstalk-Sources and MitigationConclusionOUTLINE3Information Classification:GeneralSi

3、gnal Degradation Factors4Absorption(dispersion)in dielectrics and conductors(app note#2021_10)Reflections from impedance mismatches and discontinuities(app notes#2021_11 and#2022_01)Leaks or dissipation into other interconnects,common mode,power distribution networks(PDNs),and free space(radiated)so

4、urce of crosstalk and EMC/EMICrosstalk interference from signals leaked from the other interconnects(app notes#2023_04 and#2024_01)Crosstalk is unwanted noise from the coupled structures caused by signal leaks that degrade the useful signal and may reduce the data transmission rate and even cause co

5、mplete link failureApp Notes are at https:/ Classification:General There is always crosstalk in PCB and Packaging interconnects they are open waveguiding structures Crosstalk interference cannot be corrected at the receiver end Neglecting crosstalk can result in system failures that are hard to diag

6、nose and fix Crosstalk is deterministic,but difficult to predict in many cases too many variables and uncertainties A direct analysis may be not possible or costly and inefficient Worst-case analysis may lead to overdesignWhy Crosstalk is Important?5Understanding the sources of crosstalk and mitigat