LMX2531在信号源射频电路设计中的应用

MICROPROCESSORS##LMX2531李彩华,李柏渝(国防科技大学电子科学与工程学院卫星导航定位研发中心,长沙410073):介绍了LMX2531频率合成芯片与一般通用频率合成芯片的特点,并将二者在物理特性和使用的复杂度等方面进行了对比最后,给出了LMX2531在一个信号源系统中应用的实例以该芯片设计的本振电路运行稳定可靠,相位噪声低,证明了其在信号源后端设计中的有效性:锁相环;频率合成器;信号源设计:TN402:A:1002-2279(2008)04-0002-02TheApplicationofLMX2531intheSignalSimulatorRF-CircuitDesignLICai-hua,LIBai-yu(SatelliteNavigationandPositioningR&DCenter,SchoolofElectronicScienceandEngineering,theNationalUniversity.ofDefenseTechnology,Changsha410073,China)Abstract:IntroducesthecharacteristicsoftheLMX2531RFsynthesizerandthegeneralPLLfrequencySynthesizerrespectively,andthencomparestheminphysicalspecialtiesandthecomplexitywhenused.Atlas,tprovidesapracticalexampleofLMX2531inasignalsimulatorsystem,inwhichtheLOcircuitsbasedonLMX2531haslowphasenoise,runssteadilyandreliably.Fromtheexample,thefeasibilityofthischipinthesimulatorRF-Circuitdesignisproved.Keywords:PLL;FrequencySynthesizer;SignalSimulator1,,LMX2531,,LMX25312LMX2531LMX2531,2.11,,,VCOLPF,:1PLL1),ADADF4252,,VCOLPF,,2),:(1983-),,,,::2006-09-10420088No.4Aug.,2008:LMX2531,,,;,,,3),2.2LMX2531LMX25312,,:1),,6mm@6mm@0.8mm,2,LMX2531VCO,,LMX2531,,LMX25313.3V,40mA,132mW2LMX25312),VCO,,,3)LMX2531,765MHz~2790MHz,,LMX2531,,,4)LMX2531,LMX2531RC,,RC;LMX2531,,,2.31LMX2531,1,LMX2531,,,,,PLL,1LMX2531LMX25313,30MHz,?10MHz,1300MHz,,fLO=1300MHz-30MHz=1270MHzLMX2531LMX253LQ2570E,1168MHz~1395MHzfOSC=10MHz,fR=1MHz,R=fOSC/fR=10,N:NRF1=fLO/fR=127LMX2531LMX25313(7)#3#4:AESxcv1000BG560,VerilogHDL,EDA,,,33.9MHz,1253slices,Throughput434Mbits/s,1-1Slices(MHz)(Mbps)Mbps/slices[3]Xcv300BG4322358222590.110[4]Xcv1000BG560530214.13000.057[5]VirtexE290225.93310.114[6]Xcv1000BG560337483.210650.316OursXcv1000BG560125333.94340.3466AESSB-ISBMC-IMC,CSE4sboxmixcolumn,,,,AES:[1]NIST.AdvancedEncryptionStandard(AES)FIPS[J]Pub.Nov.2001.[2]RPasko,PSchaumont,VDerudder,SVernalde,Member,IEEE,andDDurackova.ANewAlgorithmforEliminationofCommonSubexpressionsIEEETransactionsonCompu-ter-AidedDesignofIntegratedCircuitsandsystems[J],1999,18(1).[3]NSklavos,OKoufopavlou.ArchitecturesandVLSIimple-mentationsoftheAES-ProposalRijndael[J].Compu-ters,IEEETranctionson,Dec.2002,51(12).[4]AJElbirt,WYip,BChetwynd,andCPaar.AnFPGAbasedPerformanceEvaluationoftheAESBlockCipherCandidateAlgorithmFinalists[J].Proc.ThirdAESCandidateCon.f,Apr.2000.[5]KGajandPChodowiec.ComparisonoftheHardwarePer-formanceoftheAESCandidatesUsingReconfigurableHardware[J].Proc.ThirdAESCandidateCon.f,Apr,2000.[6],,.AESFPGA[J]..2005.22(7).[7]JDaemenandVRijmen.AESProposa:lRijndae,lNIST.sAEShomepage[J].[8]MDMacleodandAGDempster.Commonsubexpressioneliminationalgorithmforlow-costmultiplierlessimple-mentationofmatrixmultipliers.ElectronicsLetters[J].2004,40(11).[9]Shen-FuHsiao,Ming-ChihChen,andChia-ShinTu.Memory-FreeLow-costDesignsofAESUsingCSEforSubfunctionsinTransformations[J].IEEETransactionsonCircuitsandsystems-I:RegularPapers,2006,53(3).(3)3LMX2531,ATMELAT-TINY12I2CLMX253122,PLL2(dBc/Hz)(MHz)@10Hz@100Hz@1KHz@10KHz@100KHz@1MHzLO1270-75-88-92-99-108-1194,LMX2531,,:[1].[M].:,2004.[2]MOTOROLAINC.PLLFrequencySynthesizerFamily[EB/OL].[3].[J].,1999(6):10-13.[4]SiliconLaboratoriesINC.Dual-BandRFSynthesizerwithIntegratedVCOsForWirelessCommunication[EB/OL].[5].[M].:,2003.#7#4