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1、IEEEJOURNALOFSOLID-STATECIRCUITS,VOL.32,NO.12,DECEMBER19972071A1.9-GHzWide-BandIFDoubleConversionCMOSReceiverforCordlessTelephoneApplicationsJacquesC.Rudell,StudentMember,IEEE,Jia-JiunnOu,StudentMember,IEEE,ThomasByunghakCho,Member,IEEE,GeorgeChien,StudentMember,IEEE,FrancescoBrianti,Jeffre
2、yA.Weldon,StudentMember,IEEE,andPaulR.Gray,Fellow,IEEEAbstractÐAmonolithic1.9-GHz,198-mW,0.6-mCMOScommunicationsystemmaywellrequiretheabilitytoutilizereceiverwhichmeetsthespecificationsoftheDigitalEnhancedboththeservicesprovidedbymultipleRFstandardsandCordlessTelecommunications(DECT)standar
3、disdescribed.Alltheflexibilityaffordedthroughmultimodaloperation.ThisoftheRF,IF,andbasebandreceivercomponents,withtheex-consequentlywilldemandthecapabilitybyasingletrans-ceptionofthefrequencysynthesizers,havebeenintegratedintoasinglechipsolution.Adescriptionisgivenofawide-bandIFwithceivertoo
4、perateonstandardswithvariouscarrierfrequencies,doubleconversionarchitecturewhicheliminatestheneedforthechannelbandwidths,sensitivity,andselectivityrequirements.discrete-componentnoiseandIFfiltersinadditiontofacilitatingTheincreasedfunctionalityofferedbyalargehigh-integrationtheeventualintegr
5、ationofthefrequencysynthesizerblockswithsystemwillbewellsuitedtoaddresstheneedsofamultimodalon-chipVCO's.Theprototypedeviceutilizesa3.3-Vsupplyandtransceiver.includesalownoiseamplifier,animage-rejectionmixer,andtwoquadraturebasebandsignalpathseachofwhichincludesThispaperdescribesareceiversys
6、temthatachieveshighasecond-orderSallenandKeyanti-aliasfilter,aneighth-orderlevelsofintegrationwhileexhibitingfeaturespotentiallyal-switched-capacitorfilternetworkfollowedbya10-bpipelinedlowingoperationonmultipleRFstandards.Aprototypedeviceanalog-to-digitalconverter(ADC).Theexperimentaldeviceh
7、asbasedonthisnewwide-bandIFdoubleconversion(WBIFDC)ameasuredreceiverreferencesensitivityof090dBm,aninputarchitecturewasrealizedina0.6-mdouble-poly,triple-metalreferredIP3of07dBm,aP01dBof024dBm,andanimage-rejectionratioof055dBcacrosstheDECTbands.CMOSproce