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DC25_SLIDES_Track6_IBIS-AMIModelingBidirectionLink_Rao.pdf

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1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025Santa Clara Convention Center1ExpoJanuary 2930,2025 Information Classification:GeneralIBIS-AMI Modeling Formulation for Bi-directional MultiGBase-T1 Automotive Ethernet LinksFangyi Rao,Keysight TechnologiesZhiping Yang,PCB Autom

2、ation Inc.Saied Benyamin,Ethernovia Inc.Geoff Zhang,AMD2Information Classification:GeneralSPEAKERSFangyi RaoMaster Engineer,Keysight Technologies fangyi_Fangyi Rao is a master R&D engineer at Keysight Technologies.At Agilent/Keysight EEsoft he works on Analog/RF and SI simulation technologies in ADS

3、.Prior to Keysight he was with Cadence Design Systems,where he developed SpectreRF Harmonic Balance technology and high order perturbation analysis method for nonlinear circuits.Prior to Cadence he worked in areas of EM simulation,nonlinear device modeling,and medical imaging.He received his Ph.D.de

4、gree in theoretical physics from Northwestern University.Zhiping YangCEO,PCB Automation Inc.zhipingyangpcbauto.aiZhiping Yang is the CEO of PCB Automation Inc.(https:/pcbauto.ai)and an adjunct professor at Missouri S&T EMC laboratory.He worked in Waymo,Google,Apple,Cisco,and Nuova systems on automot

5、ive,consumer,and datacenter products.His research interests include signal integrity and power integrity methodology development for Die/Package/Board co-design,high-speed optical module,various high-speed cabling solutions,high-speed DRAM/storage technology,and high-speed serial signaling technolog

6、y.He has published more than 70 research papers and 20 patents.His research and patents have been applied in Apple iPhone 5S/6/6S,Cisco UCS,Cisco Nexus 6K/4K/3K,and Cisco Cat6K products.He is actively involved with the IBIS Open Forum as a BoD member and officer.He is an IEEE Fellow and served the T

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1. **会议主题**:2025年1月28-30日于圣克拉拉会议中心举办的会议,聚焦IBIS-AMI建模在双向MultiGBase-T1汽车以太网链路中的应用。 2. **核心问题**:双向链路需同时传输数据与功率,通过混合电路(Hybrid)和数字回波消除(DEC)技术抑制TX回波,减少电缆复杂度与成本。 3. **建模方案**: - TX/RX AMI模型协同,TX通过`AMI_GetWave`写入波形文件,RX读取用于DEC。 - 引入新IBIS关键词关联TX/RX引脚,混合电路作为模拟通道(如S参数)。 4. **仿真验证**:10GBase-T1链路(7.5米STP电缆,PAM4调制)显示,DEC有效开启RX眼图,眼高与单向链路一致,眼宽略减;非线性影响有限。 5. **标准扩展**:IBIS 7.2需支持双向缓冲(SBD),预留`impulse_matrix`首列存储回波信号,支持统计仿真。
**双向通信如何实现?** **回波消除技术有何优势?** **IBIS-AMI如何扩展?**
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