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IntegratedSynthesizerandVCOADF4360-8Rev.AInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:781.329.4700©2005AnalogDevices,Inc.Allrightsreserved.FEATURESOutputfrequencyrange:65MHzto400MHz3.0Vto3.6Vpowersupply1.8VlogiccompatibilityInteger-NsynthesizerProgrammableoutputpowerlevel3-wireserialinterfaceDigitallockdetectHardwareandsoftwarepower-downmodeAPPLICATIONSSystemclockgenerationTestequipmentWirelessLANsCATVequipmentGENERALDESCRIPTIONTheADF4360-8isanintegratedinteger-Nsynthesizerandvoltage-controlledoscillator(VCO).TheADF4360-8centerfrequencyissetbyexternalinductors.Thisallowsafrequencyrangeofbetween65MHzto400MHz.Controlofalltheon-chipregistersisthroughasimple3-wireinterface.Thedeviceoperateswithapowersupplyrangingfrom3.0Vto3.6Vandcanbepowereddownwhennotinuse.FUNCTIONALBLOCKDIAGRAMMUXOUTCPVVCOREFINCLKDATALEAVDDDVDDCEAGNDDGNDCPGNDRSETVTUNECCCNL2L1RFOUTARFOUTBVCOCOREPHASECOMPARATORMUTEN=BCHARGEPUMPOUTPUTSTAGE13-BITBCOUNTER14-BITRCOUNTER24-BITFUNCTIONLATCH24-BITDATAREGISTERMULTIPLEXERLOCKDETECTADF4360-804763-001Figure1.ADF4360-8Rev.A|Page2of24TABLEOFCONTENTSSpecifications.....................................................................................3TimingCharacteristics................................................................5AbsoluteMaximumRatings............................................................6TransistorCount...........................................................................6ESDCaution..................................................................................6PinConfigurationandFunctionDescriptions.............................7TypicalPerformanceCharacteristics.............................................8CircuitDescription.........................................................................10ReferenceInputSection.............................................................10NCounter....................................................................................10RCounter....................................................................................10PFDandChargePump..............................................................10MUXOUTandLockDetect......................................................10InputShiftRegister.....................................................................11VCO..............................................................................................11OutputStage................................................................................12LatchStructure...........................................................................13Power-Up.....................................................................................17ControlLatch..............................................................................19NCounterLatch.........................................................................20RCounterLatch.........................................................................20Applications.....................................................................................21ChoosingtheCorrectInductanceValue.................................21FixedFrequencyLO...................................................................21Interfacing...................................................................................22PCBDesignGuidelinesforChipScalePackage...........................22OutputMatching........................................................................23OutlineDimensions.......................................................................24OrderingGuide..........................................................................24REVISIONHISTORY01/05—Rev.0toRev.AChangestoTable1............................................................................3ChangestoTable2............................................................................5ChangestoFigure20......................................................................12AddedPower-UpSection..............................................................17DeletedPower-UpSection............................................................22UpdatedOutlineDimensions.......................................................24ChangestoOrderingGuide..........................................................2410/04—Revision0:InitialVersionADF4360-8Rev.A|Page3of24SPECIFICATIONS1AVDD=DVDD=VVCO=3.3V±10%;AGND=DGND=0V;TA=TMINtoTMAX,unlessotherwisenoted.Table1.ParameterBVersionUnitConditions/CommentsREFINCHARACTERISTICSREFINInputFrequency10/250MHzmin/maxForf10MHz,useadc-coupledCMOS-compatiblesquarewave,slewrate21V