13:46:2319.9.9.AdvancedEMC++6278470913601024327hejl@tsinghua.edu.cn13:46:2329.9.9.¾¾¾¾¾¾¾¾13:46:2339.9.9.¾¾¾¾13:46:2349.9.9.“”13:46:2359.9.9.EMCI/OEMC13:46:2369.9.9.1.2.3.4.5.5.1.:2.:1.1.2.3.4.5.6.7.1.2.3.1.2.3.4.1.2.3.13:46:2379.9.9.13:46:2389.9.9.¾¾PCB¾¾¾PCB¾PCB13:46:2399.9.9.¾regulation¾RFI¾ESD¾PowerDisturbance¾Self-compatibility¾13:46:23109.9.9.¾¾¾I/OPCB13:46:23119.9.9.¾PCBSourceReceptor12334I/OcablesI/Ocables13:46:23129.9.9.¾¾¾¾PCB13:46:23139.9.9.¾SignalIntegritySI¾¾13:46:23149.9.9.¾13:46:23159.9.9.¾¾¾¾¾13:46:23169.9.9.¾PCBPCB¾PCB13:46:23179.9.9.¾reflection13:46:23189.9.9.¾(overshoot)(undershoot)¾ringingrounding13:46:23199.9.9.¾13:46:23209.9.9.¾groundbounce0V¾13:46:23219.9.9.¾PCBPCBPCB¾13:46:23229.9.9.22ssZV1sVs1Z1LZ2LZG(0V)SVM1SZsV2SZsgCvgCsvCgZ1LZ2LZG(0V)tt13:46:23239.9.9.¾dB()20logvictimtalkdBsourceVXV=13:46:23249.9.9.¾PCB30021000230021000213:46:23259.9.9.¾¾PCBPCB¾¾13:46:23269.9.9.¾PCB¾¾13:46:23279.9.9.¾EMI13:46:23289.9.9.¾//13:46:23299.9.9.¾--13:46:23309.9.9.¾¾--13:46:23319.9.9.¾PCB¾0.6pF2~6pF520nH244~18nH¾13:46:23329.9.9.PCBfZfZfZfZfZ13:46:23339.9.9.¾PCB13:46:23349.9.9.T1/πd1/πtrdtr-20dB/dec-40dB/decAV(orI)=2A(d+tr)/TV(orI)=0.64A/TfV(orI)=0.2A/Ttrf213:46:23359.9.9.13:46:23369.9.9.Q1Q2Q3Q4R4R2R3R1VCCICCIIIIgVg()Q3Q4Q3Q413:46:23379.9.9.ICCVCCIgVg13:46:23389.9.9.132413:46:23399.9.9.L=0.002S(2.3lg(2S/W)+0.5µHWSL=(L1L2-M2)/(L1+L2-2M)L1=L2L=(L1+M)/2MII0.5mm12mΩ15nH160MHz9.24Ω13:46:23409.9.9.1~1.5cm(mV)13:46:23419.9.9.13:46:23429.9.9.13:46:23439.9.9.C=dIdtdVZf1/2π√LCdtdIdIdV13:46:23449.9.9.13:46:23459.9.9.13:46:23469.9.9.13:46:23479.9.9.:H=IA/(4πD3)A/mE=Z0IA/(2λD2)V/mZW=Z02πD/λΩ:H=πIA/(λ2D)A/mE=Z0πIA/(λ2D)V/mZW=Z0=377ΩAIZ0fD13:46:23489.9.9.:H=IL/(4πD2)A/mE=Z0ILλ/(8π2D3)V/mZW=Z0λ/2πDΩ:H=IL/(2λD)A/mE=Z0IL/(2λD)V/mILZ0fD13:46:23499.9.9.ZGZLVZC=ZG+ZLZC≥7.9DfE=7.96VA/D3µV/mZC≤7.9DfE=63IAf/D2µV/mH=7.96IA/D3µA/mE=1.3IAf2/DµV/m=A~I13:46:23509.9.9.E=2.6IAf2/DµV/m213:46:23519.9.9.1m13:46:23529.9.9.1/πd1/πtr40dB/decfff-20dB/dec-40dB/decE=2.6IAf2/DEdB=20lg2.6IA/D+40lgf40dB/dec20dB/decII1=0.64I13:46:23539.9.9.cm24MHz10301004000B406100040074HC620504518674LS65020187.22.474AC3.5805.52.20.750.2574F3805.52.20.750.2574AS1.412020.830.15N√N13:46:23549.9.9.E=2.6IAf2/D1/tr13:46:23559.9.9.¾¾(CRT)¾¾13:46:23569.9.9.11010010001101001000dBµV/mdBµV/m13:46:23579.9.9.~LRIZ=R+jωLL=Φ/IΦ∝A~13:46:23589.9.9.13:46:23599.9.9.68HC1174HC00ABABE13:46:23609.9.9.13:46:23619.9.9.12DC~0.51101001G110mΩ/13:46:23629.9.9.¾¾5MHz5ns¾13:46:23639.9.9.A/DL75mm25mmL:0~10cmVAB:15~75mVAB13:46:23649.9.9.//AB/PCBSIEMISIEMISIEMI13:46:23659.9.9.1.5mmPGA128-pinC/4PGA1010010.1nH/cm255075100mm13:46:23669.9.9.20H13:46:23679.9.9.21+HDKK13:46:23689.9.9.13:46:23699.9.9.3-W70%98%10-W13:46:23709.9.9.3-W13:46:23719.9.9.13:46:23729.9.9.13:46:23739.9.9.13:46:23749.9.9.//++/13:46:23759.9.9.13:46:23769.9.9.13:46:23779.9.9.LI2HCPI3I1CPVCM37)1039.0/()11.0(/3=×××××=−LILIDMCD37dB13:46:23789.9.9.¾“”99¾13:46:23799.9.9.LCPICMRWRWLZCM=RW+jωL+RL+1/jωC13:46:23809.9.9.ICM:E=1430IL/(fD3)µV/m:E=0.63ILf/DµV/mE=1.26ILf/DµV/mLλ/2λ/4E=120I/DµV/mL()¾L2L¾λ/2(λ/4)λ/2L13:46:23819.9.9.VdBµVICMIVZT=V/IICM(dBµA)=V(dBµV)-ZT(dBΩ)13:46:23829.9.9.E=1.26ILf/D13:46:23839.9.9.ABCDABCD13:46:23849.9.9.13:46:23859.9.9./“20H”13:46:23869.9.9.13:46:23879.9.9.13:46:23889.9.9.¾13:46:23899.9.9.¾13:46:23909.9.9.¾13:46:23919.9.9.13:46:23929.9.9.¾13:46:23939.9.9.¾13:46:23949.9.9.¾¾13:46:23959.9.9.VLSI400800MHzPCBFaraday13:46:23969.9.9.¾//I/O13:46:23979.9.9.¾MarkI.Montrose.EMCandtheprintedcircuitboard.NewYork:IEEEPress,1999¾.2002¾ClaytonR.Paul.Introductiontoelectromagneticcompatibility.NewYork;JohnWileyandSons,1992.¾DavidA.Weston.Electromagneticcompatibility:principlesandapplications(2nded.).NewYork:MarcelDekker,Inc.,200013:46:23989.9.9.?13:46:23999.9.9.+62784709,hejl@tsinghua.edu.cn