電子信息工程專業(yè)英語教程（第6版）課件 Lesson 09 Interconnects

Unit3ElectronicSystemComponentsLesson9Interconnects《電子信息工程專業(yè)英語教程（第6版）》任治剛編著電子工業(yè)出版社

3/6/20251《電子信息工程專業(yè)英語教程》Lesson9InterconnectsBackgroundsTexttour

LanguageinuseVocabularyStructureReading/writingtechniques3/6/20252《電子信息工程專業(yè)英語教程》TerminologyVSWRfrequencyresponsedecibelpad,leadribboncableBNCBackgrounds3/6/20253《電子信息工程專業(yè)英語教程》Terminology3/6/20254《電子信息工程專業(yè)英語教程》VSWRVoltageStandingWaveRatio電壓駐波比3/6/20255《電子信息工程專業(yè)英語教程》Frequencyresponse頻率響應(yīng)3/6/20256《電子信息工程專業(yè)英語教程》Decibel(dB)decibel分貝Aunitusedtoexpressrelativedifferenceinpowerorintensity,usuallybetweentwoacousticorelectricsignals,equaltotentimesthecommonlogarithmoftheratioofthetwolevels.3/6/20257《電子信息工程專業(yè)英語教程》Pad,leadPad焊點(diǎn)，焊盤Lead引線3/6/20258《電子信息工程專業(yè)英語教程》ribboncable帶狀電纜扁平柔性電纜3/6/20259《電子信息工程專業(yè)英語教程》同軸電纜卡環(huán)形接頭BNC3/6/202510《電子信息工程專業(yè)英語教程》TexttourOutlineIntroduction

High-SpeedConnectorProblemsCrosstalkLevelsofInterconnects3/6/202511《電子信息工程專業(yè)英語教程》Interconnectdevicesareusedforinterconnecting…Performancerequirements…Teststhatindicatesignalintegrityinclude…Introduction3/6/202512《電子信息工程專業(yè)英語教程》Interconnecteffectscanplayasignificantpartinthetimingandnoisecharacteristicsofacircuit…High-SpeedConnectorProblems3/6/202513《電子信息工程專業(yè)英語教程》causedbyinductiveandcapacitivecouplingbetweencontactsand/orlinesfeedingcontacts.canbeexpressedinapercentageofthevoltageswingofthesignal,orindecibels(dB),Twotypesofcrosstalk:backwardcrosstalkforwardcrosstalkCrosstalkcanalsobesingle-lineormultiline.

Tocompletelyunderstandthecrosstalkspecificationsofaconnector,auserneedsthefollowinginformation:Crosstalk3/6/202514《電子信息工程專業(yè)英語教程》Level1:chippadtopackageleads,e.g.,wirebondsLevel2:componentstocircuitboard,e.g.,PLCCsocketLevel3:circuitboard(board-to-board)connector,e.g.,edge-cardformotherboardtodaughterboardconnectionLevel4:subassemblyinterconnects,e.g.,ribboncablesLevel5:subassemblytoI/O,e.g.,BNCconnectorLevel6:systeminterconnects,e.g.,EthernetconnectorsLevelsofInterconnects3/6/202515《電子信息工程專業(yè)英語教程》Vocabularyloss,shield,detrimental,degradation,ratioStructureReading/writingtechniquesLanguageinuse3/6/202516《電子信息工程專業(yè)英語教程》Vocabulary3/6/202517《電子信息工程專業(yè)英語教程》LossindictionaryTheactoraninstanceoflosing:

失敗Onethatislost:

損失Thepowerdecreasecausedbyresistanceinacircuit,circuitelement,ordevice.

功率損耗Theamountofaclaimonaninsurerbyaninsured.

險(xiǎn)損賠償額3/6/202518《電子信息工程專業(yè)英語教程》Lossintext

Interconnectdevicesmustmeetcertainperformancerequirementsinmostorallofthefollowingcategories:SignalintegrityPowerloss…互連器件必須滿足下列大多數(shù)或者全部性能要求：信號完整性功率損耗…3/6/202519《電子信息工程專業(yè)英語教程》Lossinuse

absorptionloss吸收損耗antennaloss天線損耗apertureloss孔徑失真conductionloss傳導(dǎo)損耗contactloss接觸損耗conversionloss變換損耗couplingloss耦合損耗crosstalkloss串話損耗3/6/202520《電子信息工程專業(yè)英語教程》Lossinuse

distributionloss配電損耗grossloss毛損,總損harmonicloss諧波損耗insertionloss插損ironcoreloss鐵芯損耗loadloss負(fù)載損耗powermismatchloss輸入失配損耗propagation(power)loss傳播(功率)損耗transmissionloss傳輸損耗3/6/202521《電子信息工程專業(yè)英語教程》ShieldindictionaryAbroadpieceofarmormadeofrigidmaterialandstrappedtothearmorcarriedinthehandforprotectionagainsthurledorthrustedweapons.盾Apersonorthingthatprovidesprotection.后盾Aprotectivedeviceorstructure防護(hù)性裝置或結(jié)構(gòu)Atechnicalsafeguardthatprotectsthecircuitorunitfromtheinfluenceofexternalelectricormagneticsourcestoproduceharmfulsignal.

屏蔽3/6/202522《電子信息工程專業(yè)英語教程》ShieldintextElectricalcharacteristics:contactresistance,inductanceandcapacitance;voltageandpowerratings;shielding;filtering電氣特性（接觸電阻，電感和電容，電壓和功率額定值，屏蔽，濾波）

3/6/202523《電子信息工程專業(yè)英語教程》Shieldinuse

arcshield電弧罩baffleshield隔音板cableshield電纜套管electrostaticshield靜電屏蔽groundshield接地屏蔽radiationshield防輻射屏蔽3/6/202524《電子信息工程專業(yè)英語教程》DetrimentalindictionaryCausingdamageorharm;injurious.

引起損害的；有害的3/6/202525《電子信息工程專業(yè)英語教程》DetrimentalintextAninterconnectthatmustpasstheshortrisetimeofahigh-speedsignalpulsecanbedetrimentaltomaintainingsignalintegrityduetoanunwantedreflection.因?yàn)槌霈F(xiàn)了反射，所以在通過互連路徑傳送高速信號脈沖時，短促的上升時間就會破壞信號的完整性。3/6/202526《電子信息工程專業(yè)英語教程》DegradationindictionaryTheactorprocessofdegrading.

降級Thestateofbeingdegraded;degeneration.

墮落，衰退Adeclinetoalowercondition,quality,orlevel.

退化，下降Decompositionofacompoundbystages,exhibitingwell-definedintermediateproducts.

降解3/6/202527《電子信息工程專業(yè)英語教程》DegradationindictionaryIndatacommunications,adeteriorationinthecharacteristicsofasignalforwhateverreason.Aconditioninwhichthesystemoperatesatreducedlevelsofservice.Thesecircumstancesareusuallycausedbyunavailabilityofvariousequipmentunitsorsubsystems.3/6/202528《電子信息工程專業(yè)英語教程》DegradationintextSignalintegrityisdefinedbylossofqualityoftheinputsignal.Ideally,thesignalattheoutputofaninterconnectshouldbeequalinallcharacteristicswiththesignalattheinputoftheinterconnect.Inreality,signaldegradationoccurs.信號完整性是指輸入信號質(zhì)量的損失。理想情況下，互連器件的輸出端信號和輸入端信號在所有特性上都完全相同。實(shí)際中會發(fā)生信號質(zhì)量的下降。

3/6/202529《電子信息工程專業(yè)英語教程》RatioindictionaryRelationindegreeornumberbetweentwosimilarthings.

比率Therelationbetweentwoquantitiesexpressedasthequotientofonedividedbytheother:

比例Theratioof7to4iswritten7:4or7/4.