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IntegratedSynthesizerandVCOADF4360-7Rev.AInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:781.329.4700©2004AnalogDevices,Inc.Allrightsreserved.FEATURESOutputfrequencyrange:350MHzto1800MHzDivide-by-2output3.0Vto3.6Vpowersupply1.8VlogiccompatibilityInteger-NsynthesizerProgrammabledual-modulusprescaler8/9,16/17Programmableoutputpowerlevel3-wireserialinterfaceAnaloganddigitallockdetectHardwareandsoftwarepower-downmodeAPPLICATIONSWirelesshandsets(DECT,GSM,PCS,DCS,WCDMA)TestequipmentWirelessLANsCATVequipmentGENERALDESCRIPTIONTheADF4360-7isanintegratedinteger-Nsynthesizerandvoltagecontrolledoscillator(VCO).TheADF4360-7centerfrequencyissetbyexternalinductors.Thisallowsafrequencyrangeofbetween350MHzto1800MHz.Inaddition,adivide-by-2optionisavailable,wherebytheuserreceivesanRFoutputofbetween175MHzand900MHz.Controlofalltheon-chipregistersisthroughasimple3-wireinterface.Thedeviceoperateswithapowersupplyrangingfrom3.0Vto3.6Vandcanbepowereddownwhennotinuse.FUNCTIONALBLOCKDIAGRAMMUXOUTCPVVCOREFINCLKDATALEAVDDDVDDRSETAGNDDGNDCPGNDCEVTUNECCCNL1L2RFOUTARFOUTBVCOCOREPHASECOMPARATORMUTEDIVSEL=2DIVSEL=1N=(BP+A)LOADLOADCHARGEPUMPOUTPUTSTAGEMULTIPLEXERINTEGERREGISTER13-BITBCOUNTER14-BITRCOUNTER24-BITFUNCTIONLATCH24-BITDATAREGISTER5-BITACOUNTERPRESCALERP/P+1MULTIPLEXERLOCKDETECT÷2ADF4360-704441-001Figure1.ADF4360-7Rev.A|Page2of28TABLEOFCONTENTSSpecifications.....................................................................................3TimingCharacteristics.....................................................................5AbsoluteMaximumRatings............................................................6TransistorCount...........................................................................6ESDCaution..................................................................................6PinConfigurationandFunctionDescriptions.............................7TypicalPerformanceCharacteristics.............................................8CircuitDescription.........................................................................10ReferenceInputSection.............................................................10Prescaler(P/P+1)......................................................................10AandBCounters.......................................................................10RCounter....................................................................................10PFDandChargePump..............................................................10MUXOUTandLockDetect......................................................11InputShiftRegister.....................................................................11VCO..............................................................................................11OutputStage................................................................................12LatchStructure...........................................................................13Power-Up.....................................................................................17ControlLatch..............................................................................19NCounterLatch.........................................................................20RCounterLatch.........................................................................20Applications.....................................................................................21FrequencyGenerator.................................................................21ChoosingtheCorrectInductanceValue.................................22FixedFrequencyLO...................................................................22Interfacing...................................................................................23PCBDesignGuidelinesforChipScalePackage...........................23OutputMatching........................................................................24OutlineDimensions.......................................................................25OrderingGuide..........................................................................25REVISIONHISTORY11/04—Rev.0toRev.A.UpdatedFormat..................................................................UniversalChangestoGeneralDescription....................................................1ChangestoSpecifications................................................................3ChangestotheReferenceInputSection......................................10ChangestoPower-UpSection......................................................17AddedTable10..............................................
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