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DC25_SLIDES_Chiphead_ControllingTheWavesAField_Beeker.pdf

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1、Information Classification:GeneralWelcome to ConferenceJanuary 2830,2025 Santa Clara Convention CenterExpoJanuary 2930,2025 Page 1Information Classification:GeneralControlling the Waves:A Field-based Perspective on High-speed PCB DesignChiphead Theater Session Jan 30,2025,3:15 pm-4:00 pm Chiphead Th

2、eaterDaniel Beeker,(NXP Semiconductor)Page 2Information Classification:GeneralTopic:oBasic behavior of EM fields.Topic:oMost important characteristics of the ICTopic:oDefine the transmission linesTopic:oPDN Component Selection and PlacementTopic:oClosing Remarks and Reference MaterialsControlling th

3、e Waves:A Field-based Perspective on High-speed PCB Design3Picture courtesy of https:/lightcolourvision.org/resource-library/features-of-electromagnetic-waves/Page 3Information Classification:GeneralSPEAKERDaniel BeekerTechnical Director,NXP S|NXP.comWith more than 44 years of experience in electron

4、ic system design and EMC,Daniel Beeker provides application support for NXP Automotive customers worldwide.Daniel also supports NXP customers globally with special function development tools and instrumentation.Daniel specializes in EMC and signal integrity design techniques for systems and PCBs,esp

5、ecially in low-layer count designs.In support of this,Daniel has completed more than 300 PCB design evaluations for customers and internal NXP products.Daniel teaches field-based design techniques at NXP and industry conferences worldwide,with more than 200 sessions with more than 7500 attendees sin

6、ce 2010.Daniel is also involved with NXP IC package design and IC development tool teams to support improved EMC performance,working on more than 30 IC designs.Daniels unique approach to EMC is the result of many years of collaboration with one of the fathers of our industry,Ralph Morrison,whose fou

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1. **核心观点**:电磁能量在导体间的空间传输,而非导体本身;"能量和信号在空间中传播,而非走线"。 2. **关键数据**: - IC开关速度决定设计需求(如1ns上升时间对应1/4波长=3英寸,易形成天线)。 - 电源传输需满足1/20波长距离(如500MHz逻辑需0.59英寸内放置电容)。 3. **设计原则**: - 传输线需紧邻参考平面(如地平面),阻抗控制需根据负载距离调整。 - PDN设计需匹配开关速度,确保储能器件(电容)靠近IC,避免能量耗尽波辐射。 4. **行业现状**:从TTL到32nm CMOS,开关速度提升4个数量级,但PCB设计理念未同步更新。
**能量藏何处?** 引发对能量传输本质的思考,暗示传统认知的误区) **空间 vs 导体?** 用对比制造悬念,突出“空间”在高速设计中的核心地位) **天线如何形成?** 关联实际设计痛点,暗示高速PCB中隐藏的辐射风险)
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