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DCON26_SLIDES_Track10_ModelingMeasuringLargeSignalPDNCrosstalkGroundBouncewithaMulti-PhaseVRMSystemUsingaFa_105_136.pdf

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1、Welcome to ConferenceFebruary 2426,2026Santa Clara Convention CenterExpoFebruary 2526,2026 1Approved for Public Release:NG26-0136.2026 Northrop Grumman Systems CorporationModeling and Measuring Large Signal PDN Crosstalk and Ground Bounce with a Multi-Phase VRM Using a Fast Multi-Domain BGA Step Loa

2、dSpeakers:Will McCaffrey,(Northrop Grumman)Emily Tann,(Signal Edge Solutions)Tyler Huddleston,(Signal Edge Solutions)Additional authors:Benjamin Dannan(Signal Edge Solutions)Heidi Barnes(Keysight Technologies)Steve Sandler(Picotest)Idan Ben Ezra(Broadcom)2All trademarks are the property of their res

3、pective ownersApproved for Public Release:NG26-0136.2026 Northrop Grumman Systems CorporationSpeakersWill McCaffreyDigital Hardware Manager,Northrop GWill specializes in high-performance digital design,SI/PI,and space-grade aerospace applications.He holds an M.S.in EE from Johns Hopkins and was reco

4、gnized as a DesignCon 2025 40 Under 40 Engineer.3Emily TannSIPI Engineer,Signal Edge SEmily focuses on system-level performance optimization through measurement and modeling.She holds a B.S.in EE from University of Maryland and previously worked on mission-critical systems at Northrop Grumman.Tyler

5、HuddlestonSenior SIPI Engineer,Signal Edge STyler specializes in modeling and measurement for high-speed digital systems.He is a Keysight Certified Expert,is recognized as a DesignCon 2026“40 Under 40”Engineer,holds an M.S.in ECE from Johns Hopkins,and brings diverse experience from aerospace and de

6、fense applications.Approved for Public Release:NG26-0136.2026 Northrop Grumman Systems Corporation Introduction of Team Test System Background&Overview Impedance Measurements Crosstalk Measurements Ground Bounce Measurements Simulation Correlation to Measurements Conclusion QuestionsOutline4Approved

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1. **研究主题**:多相VRM大信号串扰与地弹测量与建模,针对高密度ASIC电源完整性(PI)挑战。 2. **核心数据**: - 8层板串扰(580 mVpp)优于6层板(678 mVpp),地弹峰值24.95 mVpp(8L02)。 - 测量不确定度3.6 mVpp,仿真与测量相关性良好(地弹差值<13.1 mVpp)。 3. **关键发现**: - 8层对称设计抑制串扰,6层需优化布局; - 探针角度/ placement 是亚毫伏级测量重复性的关键; - 隔离探头消除负载 cell 耦合伪影。 4. **结论**:建立高精度仿真-测量框架,为EMI研究奠定基础。
**如何精准测量串扰?** **8层板比6层板更优吗?** **地弹噪声如何抑制?**
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