TheADF4106frequencysynthesizercanbeusedtoimplementlocaloscillatorsintheup-conversionanddown-conversionsectionsofwirelessreceiversandtransmitters.Itconsistsofalow-noisedigitalPFD(PhaseFrequencyDetector),aprecisionchargepump,aprogrammablereferencedivider,programmableAandBcountersandadual-modulusprescaler(P/P+1).TheA(6-bit)andB(13-bit)counters,inconjunctionwiththedualmodulusprescaler(P/P+1),implementanNdivider(N=BP+A).Inaddition,the14-bitreferencecounter(RCounter),allowsselectableREFINfrequenciesatthePFDinput.AcompletePLL(Phase-LockedLoop)canbeimplementedifthesynthesizerisusedwithanexternalloopfilterandVCO(VoltageControlledOscillator).Itsveryhighbandwidthmeansthatfrequencydoublerscanbeeliminatedinmanyhighfrequencysystems,simplifyingsystemarchitectureandloweringcost.