DC25_PAPER_Track07_NovelMethodForImprovingDifferential_Bloch_V2.pdf

1、 Information Classification:General Novel Method for Improving Differential to Common Signal Integrity Results for 112GB/224GB Gal Matarasso,Xsight Labs Roee Bloch,Xsight Labs Information Classification:General Abstract During the development of our dense,multi-lane high-speed communication products

2、,we discovered that traditional methods are insufficient for improving differential to common mode conversion.Routing all interfaces necessitates PCBs with over 28 layers and numerous length-tuning segments.Simulations indicated that conventional approaches result in lanes with significant mode conv

3、ersion issues.Subsequent VNA measurements on coupon boards corroborated these simulations,validating our concerns.This paper discusses the risks associated with high mode conversion,illustrates the potential consequences of improper PCB routing,and proposes a novel approach to mitigate and enhance m

4、ode conversion.Author Biographies Gal Matarasso is a Signal and Power Integrity Engineer specializing in high-speed communication systems at Xsight Labs.He is involved in developing the next generation of data center switches and EPUs.Gal holds a B.Sc.in Electrical Engineering from Ben-Gurion Univer

5、sity.Roee Bloch is the Lead Engineer for High-Speed Signal and Power Integrity at Xsight Labs.He focuses on developing the next generation of packages and boards,with an emphasis on high-speed interfaces.Prior to his current role,Roee served as a Principal SI Engineer at Marvell Semiconductors and a

6、s an SI Engineer at Intel Corporation.He holds a B.Sc.in Electrical Engineering from HIT Academic Center.Information Classification:General 1.Differential Signaling and Mode Conversion 1.1.Introduction Differential signaling is ubiquitous in high-speed communication systems due to its inherent noise