DC25_PAPER_Track07_IntraPairSkewIn224G_Grant_V2.pdf

1、 Intra-pair skew in 224G DAC cables,mitigation and operating environment Chuck Grant,Luxshare Technologies chuck.grantluxshare- Andrew Kim,Luxshare Technologies andrew.kimluxshare- Abstract The increased data rates of 224Gbps and beyond pose signal integrity challenges for system designers and manuf

2、acturers.One major concern is intra-pair time delay skew.With a UI of less than 10 picoseconds,even a few picoseconds of skew between positive and negative signals could significantly increase data errors.This paper will explore the behavior and control of skew in twinaxial cable and DAC cable assem

3、blies.Details will include the causes of skew,design techniques to mitigate skew and performance in real world environments that include bending/routing and thermal conditions.Simulations to demonstrate concepts and robustness improvement will be backed-up by measured data of S-Parameter based skew

4、and Bit Error Rate with SerDes test boards.Author(s)Biography Chuck Grant is a Director of Bulk Cable for Luxshare Technologies focused on high speed cable development.He has 40 years of experience in the cable industry.Holding technical positions in design,development and quality.As well as commerc

5、ial positions in product and general management.Chuck has been working on high speed data cable development for more than 25 years.Andrew Kim is the Director of Engineering at Luxshare Technologies specializing on signal integrity in high-speed interconnects.He has over 20 years of experience in the

6、 field and 35 US patents 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.Introduction The unit interval is getting i