ADL5375-05ACPZ-WP1中文资料

400MHzto6GHzBroadbandQuadratureModulatorADL5375Rev.0InformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:[phone]©2007AnalogDevices,Inc.Allrightsreserved.FEATURESOutputfrequencyrange:400MHzto6GHz1dBoutputcompression:≥9.4dBmfrom450MHzto4GHzOutputreturnloss≤14dBfrom450MHzto5.5GHzNoisefloor:−160dBm/Hz@900MHzSidebandsuppression:−50dBc@900MHzCarrierfeedthrough:−46dBm@900MHzBasebandinputbiaslevelADL5375-05:500mVADL5375-15:1500mVSinglesupply:4.75Vto5.25V24-leadLFCSP_VQpackageAPPLICATIONSCellularcommunicationsystemsGSM/EDGE,CDMA2000,W-CDMA,TD-SCDMAWiMAX/broadbandwirelessaccesssystemsSatellitemodemsFUNCTIONALBLOCKDIAGRAMIBBPIBBNLOIPLOINQBBNQBBPRFOUTDSOP07052-001QUADRATUREPHASESPLITTERADL5375Figure1.GENERALDESCRIPTIONTheADL5375isabroadbandquadraturemodulatordesignedforoperationfrom400MHzto6GHz.Itsexcellentphaseaccuracyandamplitudebalanceenablehighperformanceintermediatefrequencyordirectradiofrequencymodulationforcommu-nicationsystems.TheADL5375featuresabroadbasebandbandwidth,alongwithanoutputgainflatnessthatvariesnomorethan1dBfrom450MHzto3.8GHz.Thesefeatures,coupledwithabroad-bandoutputreturnlossof≤−14dB,maketheADL5375ideallysuitedforbroadbandzeroIForlowIF-to-RFapplications,broadbanddigitalpredistortiontransmitters,andmultibandradiodesigns.TheADL5375acceptstwodifferentialbasebandinputsandasingle-endedLO.Itgeneratesasingle-ended50Ωoutput.Thetwoversionsofferinputbasebandbiaslevelsof500mV(ADL5375-05)and1500mV(ADL5375-15).TheADL5375isfabricatedusinganadvancedsilicon-germaniumbipolarprocess.Itisavailableina24-lead,exposedpaddle,Pb-free,LFCSP_VQpackage.Performanceisspecifiedovera−40°Cto+85°Ctemperaturerange.APb-freeevaluationboardisalsoavailable.ADL5375Rev.0|Page2of32TABLEOFCONTENTSFeatures..............................................................................................1Applications.......................................................................................1FunctionalBlockDiagram..............................................................1GeneralDescription.........................................................................1RevisionHistory...............................................................................2Specifications.....................................................................................3AbsoluteMaximumRatings............................................................7ESDCaution..................................................................................7PinConfigurationandFunctionDescriptions.............................8TypicalPerformanceCharacteristics.............................................9ADL5375-05..................................................................................9ADL5375-15................................................................................14TheoryofOperation......................................................................19CircuitDescription.....................................................................19BasicConnections..........................................................................20PowerSupplyandGrounding...................................................20BasebandInputs..........................................................................20LOInput......................................................................................20RFOutput....................................................................................20OutputDisable............................................................................21Optimization...................................................................................22ApplicationsInformation..............................................................23DACModulatorInterfacing.....................................................23UsingtheAD9779AuxiliaryDACforCarrierFeedthroughNulling.........................................................................................24GSM/EDGEOperation.............................................................25W-CDMAOperation.................................................................25LOGenerationUsingPLLs.......................................................26TransmitDACOptions.............................................................26Modulator/DemodulatorOptions...........................................26EvaluationBoard............................................................................27ThermalGroundingandEvaluationBoardLayout...............28CharacterizationSetup..................................................................29OutlineDimens