DC25_SLIDES_Track07_IntraPairSkew224G_Grant_V2.pdf

1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025Santa Clara Convention Center1ExpoJanuary 2930,2025 Information Classification:GeneralIntra-pair skew in 224G DAC cables,mitigation and operating environmentChuck Grant,Luxshare-TECHAndrew Kim,Luxshare-TECH2Information Classific

2、ation:GeneralImageImage SPEAKERSChuck GrantDirector Bulk Cable,Luxshare-TECHChuck.grantluxshare-|luxshare-Focused on high-speed cable development.Chuck has 40 years of experience in the cable industry.Holding technical positions in design,development and quality.As well as commercial positions in pr

3、oduct and general management.Chuck has been working on high-speed data cable development for 25 years.Andrew KimDirector Engineering,Luxshare-TECHAndrew.kimluxshare-|luxshare-Specializing on signal integrity in high-speed interconnects.Andrew has over 20 years of experience in the field and 35 US pa

4、tents with prior positions at Spectra7 Microsystems,Intersil/Renesas,Samsung Electromechanics,and Quellan.He received is Ph.D.and M.S.E.E.from the Massachusetts Institute of Technology and his B.S.E.E.from Georgia Institute of Technology.3Information Classification:GeneralTwinax Skew Behavior4Inform

5、ation Classification:General Manufacturing variation caused unbalance Mechanical difference(primary)Dielectric properties(secondary)Examples:o Concentricityo Ovalityo Non uniform shield wrappingo Deformation of wrapping thickness Most variations vary along length of twinaxo Statistical methods requi

6、red to assess skewCauses of Skew in Twinax5ConcentricityOvalityNon-Uniform tightness or deformationInformation Classification:General Frequency domain shape:high-Oscillation Decreasing/oscillations due to couplingo S-Parameter coupling is S23&S41(even-odd)o Coupling gradually makes P&N more alikeo L