电路板设计规范

PCB..............................................................................................................................................................31929394PCB115125.1125.2135.3135.4135.5146146.1146.2146.3156.4156.5176.5.1176.5.1.1176.5.1.2186.5.1.3186.5.1.4186.5.1.5196.5.1.6196.5.2196.5.2.1196.5.2.2216.5.3226.6DFM236.6.1PCB236.6.2ID246.6.3246.6.4SMD246.6.4.1SMD246.6.4.2SMD246.6.4.3SMD256.6.5THD266.6.6276.6.7276.6.7.1276.6.7.2286.6.8286.6.8.1/286.6.8.2286.6.8.3306.6.8.4306.6.9316.6.9.1316.6.9.2326.6.9.3326.6.9.4326.6.10326.6.10.1326.6.10.2336.6.10.3BGA336.6.10.4336.6.10.5336.6.11336.6.12346.6.12.1346.6.12.2346.6.12.3346.6.12.4346.6.12.5356.6.13366.6.13.1366.6.13.2366.6.14366.6.14.1366.6.14.2376.6.14.3376.6.14.4376.7DFT386.7.1PCBICT386.7.1.1ICT386.7.1.2396.7.1.3396.7.1.4ICT416.7.2416.8EMC416.8.1426.8.1.1426.8.1.2426.8.1.3436.8.2EMC436.8.2.1436.8.2.1446.8.2.2446.8.3EMC446.8.3.1446.8.3.2456.8.3.3456.9456.10466.10.1466.10.2-48V476.10.3E1/T1486.10.4486.10.5V35486.10.6PGND486.10.7ESD496.10.8497507.1507.1.1507.1.2517.1.3517.1.4527.2567.2.1567.2.1.1567.2.1.2577.2.1.3587.2.2597.2.3597.3597.3.1597.3.2607.3.3607.3.3.1607.3.3.2Fanout607.3.3.3Fanout607.3.4617.3.4.1PCB617.3.4.2PCB627.3.4.3PCB637.3.4.4PCB657.3.5657.3.5.1657.3.5.2SpreadWires657.3.5.3657.4668668.1668.1.1668.1.2678.2678.2.1678.2.2QA688.2.3688.2.4698.3698.3.1698.3.25708.4708.4.1708.4.2708.5PCBPCB709719.1719.2719.3719.3.1719.3.2739.3.2.1739.3.2.2739.3.3759.3.4759.3.5759.3.5.1759.3.5.2769.3.5.3769.3.5.4769.3.5.5769.3.5.6769.3.5.7769.3.677107910.17910.27910.3PCB7910.4SIECO8110.5PCB8110.68210.7PCB8210.88410.8.18410.8.28610.8.38710.8.4891192PCB1CAD/SICAD/SIPCB21GB4588.3882CAD/SI3DKBA3128-2001.10PCB1PCBprintedcircuitboardschematicdiagramSchematicNetlistbackplaneboardTOPBOTTOMTOPpitch0.65mmpitch1.0mmStandOffPCBPCBPCBboardthicknessplatedthroughholeNPTHunsupportedholeViaholeblindviaTOPBOTTOMburiedviaViainpadsoldermaskorsolderresist)Land(DIPdual-in-linepackage(SIPsingle-inlinepackage(SOICsmall-outlineintegratedcircuitTHTSMTwavesolderingreflowsolderingPCBsolderbridgingsolderballsolderprojectionTombstonedcomponentActivelayerBackannotationPCBBOMBillofmaterialsphotoplottingDRCDesignrulescheckingEMCElectromagneticcompatibility)ANSIC64.14-1992)2PCBCAD/SICAD/SICAD/SI1CAD/SIPCBLayoutCAD/SI?1PCB1)CAD/SI2)EMCDFM/DFT3)IBISSPICEEDAPCBPCB4)DFMEMC5)CAD/SIPCB11.1CAD/SICADSIPCB1.21)2)3)4)5)6)1.31)/PCB/2)PCBPCB1.41)2)PCB1.5PCB1)PCBFR42)PCBHDIPCBHDI22.11)PCB2)PCBPCB2.21)PCB2)3)4)5)PCB6)PCB7)5mm/197mil2.31)2)6.53)2.41)SIDFMDFTEMC2)3)4)PCBSMTSMT+SMTSMT+5)6)7)PCB8)50milIC25252525mil5mil9)fanout23?1FANOUT1?2FANOUT2ICT6.5DFT10)EMC6.5EMC6.8EMC11)PCB12)13)EMCCMM2.5specctraquestCAD42.5.12.5.1.1Tpropmax=Tcycle-Tmin_setup-Tmax_out_valid+/-Tskew-Tjitter-TcrosstalkTpropmin=Tmin_in_hold-Tout_hold+/-Tskew+Tjitter+Tcrosstalk:TpropmaxTpropminTcycleTmin_setupTmax_out_validTco,TskewPINTjitterTcrosstalkTmin_in_holdTout_holdTjitter+Tcrosstalk0.5ns1)SPECCTRAQuest2)SPECCTRAQuestBufferDelayselectionFromLibaryBufferDelayFirstswitchfinalsettleDelaybufferdelay2.5.1.2PCBVOLTAGEVOLTAGE_LAYERROUTE_TO_SHAPESPECCTRAQuest(SweptparameteranylysisstubBUS2.5.1.3MaxParallelism2.5.1.4LengthTolerancePrimaryMaxSepSecondaryMaxSepSecondaryLength2.5.1.52.5.1.67.17.22.5.22.5.2.11)PCB8260IC212V50mil20--25mil20HH20H70%100H98%48VBGND2)EDA3)PCB4)PCB11234567891011124112S1G1P1S26123S1G1S2P1G2S36114S1G1S2S3P1S48134S1G1S2G2P1S3G3S48224S1G1S2P1G2S3P2S410235S1G1S2P1S3G2P2S4G3S510136S1G1S2S3G2P1S4S5G3S612156S1G1S2G2S3G3P1S4G4S5G5S612246S1G1S2G2S3P1G3S4P2S5G4S61.1.1.1PCBPCB40~7510331)PCBPCBPCB2)0.1mm0.2mm0.3mm0.4mm0.5mm0.6mm0.7mm0.8mm0.9mm1.0mm1.2mm1.5mm1.6mm2.0mm2.4mm1mm0.10.20.30.40.50.60.70.8mil1.185.129.0612.9916.9320.8724.828.74mm0.911.21.51.622.4mil36.6144.4952.3656.360.2475.9891.733)10802116762810803.0mil21164.2mil76287.0mil10802.5mil76286.5mil4)PCB1.8mil1.4mil1mm1-22-33-44-55-66-77-88-99-1010-1111-121.6mm0.360.710.362.0mm0.361.130.362.5mm0.401.530.403.0mm0.401.930.401.6mm0.240.330.210.330.242.0mm0.240.460.360.460.242.5mm0.240.710.360.710.243.0mm0.240.930.400.930.241.6mm0.140.240.140.240.140.240.142.0mm0.240.240.240.240.240.240.242.5mm0.400.240.360.240.360.240.403.0mm0.400.410.360.410.360.410.401.6mm0.140.140.140.140.140.140.140.140.142.0mm0.240.140.240.140.140.140.240.140.242.5mm0.240.240.240.240.210.240.240.240.243.0mm0.240.330.240.330.360.330.240.330.242.0mm120.140.140.140.140.140.140.140.140.140.140.142.5mm120.240.140.240.140.240.140.240.140.240.140.243.0mm120.240.240.240.240.240.240.240.240.240.240.24()2-34-56-78-910-115)layerSin-impedanceDif-impedance1.1.11)SIIBIS2)PCB3)ICBGASMT4)5)PCB124inchSMA1.2DFMPCB1.1.1PCB1)PCBmm51508X51457X1.04.5X3)X(5)1502)85mm85mmV-CUT3.5mm23150mmV-CUTPCBPCBSMDSMDMARKPCB:SPELLMODEXYXY3)5mm5mm100mmPCB5mmPCBPCB0.5mm35mm35mmPCBPCBPCBPCBV-CUTTOP&BOTTOM1mm4)PCBV-CUTV-CUT5mil1.0mm/40mil1.27mm/50milPCB0.4mm/16milPCBPCBPCBBreakawayBridge4.00mm2mmV-CUTPCB50mm250mm11.1.2ID1)2)SMT3L6mmSMTPCB3)ID-BOARD40mil80mil2mm4)0.4mmQFP0.8mmBGACSPFC40mil50mil1.1.31)THD2)0903)PCB5mm4)SMD5)6)1.1.4SMD1.1.4.1SMDPCB1.1