标签: keyless

Remotekeylessentry(RKE)hascaptivatedautomobilebuyers,asevidencedbythepopularityofRKEonnewautomobilesandasanafter-marketitem.ThisapplicationnoteprovidesanoverviewofRKEsystemsanddiscusseshowtheymeetrequirementssuchasrange,batterylife,reliability,cost,andregulatorycompliance.Itshowssomecircuitsanddesignapproachesandofferssomepredictionsforfuturesystems,whichwillincludetwo-waycommunications.……

   RFICsforKeylessEntrySystemsandRemoteControllers……

摘要：MAX1441接近和触摸传感器是专为电容式接近感应应用，包括汽车被动遥控车门开关（PRKE）。该传感器具有嵌入式快闪记忆体的2-K字必须与用户的应用程序固件编程。这个程序员开发，以便在生产环境中的MAX1441闪存编程。程序员不断轮询通信MAX1441的USB-JTAG接口。MAX1441器件一旦被发现，它会删除，程序，并确认在嵌入式快闪记忆体约3秒钟。然后，它会启动下MAX1441的投票站进行编程。可以启动应用程序的多个实例在同一台计算机上。Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>Automotive>APP5280Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>EnergyMeasurement&Metering>APP5280Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>Sensors>APP5280Keywords:passivekeylessentry,PKE,remotekeylessentry,RKE,signalconditioner,lowpower,proximitysensor,touchsensor,RFIDreaders,metertamperingpreventionDec21,2011APPLICATIONNOTE5280MAX1441ProximityandTouchSensorProgrammerUserManualBy:YoussofFathiDec21,2011Abstract:TheMAX1441proximityandtouchsensorisdesignedforcapacitiveproximitysensing……

摘要：作为一个在FOB短路或开环小孔径超高频天线用于远程无钥门禁（RKE）应用，可以终止。取决于如何终止循环，其远场模式和天线的特性阻抗会受到影响。Maxim>AppNotes>AutomotiveKeywords:UHFantenna,RKE,remotekeylessentryMar26,2006APPLICATIONNOTE3621SmallLoopAntennas:Part1―SimulationsandAppliedTheoryAbstract:Small-apertureUHFantennasforremote-keyless-entry(RKE)applicationscanbeterminatedeitherasashortedoropenloopwithinafob.Dependingonhowtheloopisterminated,itsfar-fieldpatternandtheantenna'scharacteristicimpedancewillbeinfluenced.InthisapplicationnotewewillexploreantennatheoryanddesignusingEZNEC,aneasy-to-useantennasimulator.Wewillmeasuretheantenna'scharacteristicimpedancethroughourapplicationboard.Theresultswillshowthetradeoffsbetweenopenandshortedloops,theeffectsoftheground……