标签: front-end

【应用手册】SharingExternalMemoryBandwidthUsingtheMulti-PortFront-EndReferenceDesignThisdocumentdescribesthefeaturesandarchitectureoftheAltera®Multi-PortFront-End(MPFE)referencedesign,detailsthedesignflowyoushouldfollowtointegratetheMPFEblockintoyourdesign,andillustratesthefunctionalityoftheMPFEblockinanexamplesystemwithmultiplemasters.TheMPFEreferencedesignallowsyoutoefficientlyshareaccesstoexternalmemorybetweenmultipledatamastersinyourdesign.CombinedwiththeAlteraDDR2andDDR3SDRAMControllerwithUniPHY,theMPFEblockallowsefficientaccesstoDDR2orDDR3SDRAMmemories.Inthisdocument,thetermsmasterandslavearerelativetotheMPFEreferencedesign,unlessspecificallyreferredtoasamasterinyoursystem.ThemasterportontheMPFEblockconnectstotheslaveportonthememorycontroller.EachslaveportontheMPFEconnectstothemasterportontheuserlogicblockinyoursystemthatrequiresaccesstoexternalmemory.SharingExternalMemoryBandwidthUsingtheMulti-PortFront-EndReferenceDesignAN-637-01ApplicationNoteThisdocumentdescribesthefeaturesandarchitectureoftheAlteraMulti-PortFront-End(MPFE)referencedesign,detailsthedesignflowyoushouldfollowtointegratetheMPFEblockintoyourdesign,andillustratesthefunctionalityofthe……

摘要：本应用笔记显示了一个简单和节省空间的方式一般为前端电源的负参考电压。MAX828/MAX829电荷泵提供负参考电压，降低功耗，并增加了偏置电源的可靠性。Maxim>AppNotes>AutomotivePower-SupplyCircuitsKeywords:negativereferencevoltage,common-modenoiseimmunity,chargepump,voltageinverter,rectifier,telecom,front-endpowerDec01,2000supplyAPPLICATIONNOTE971TinyChargePumpProvidesHighlyReliableLow-CostSolutiontoNegativeReferenceVoltageAbstract:Thisapplicationnoteshowsasimpleandspace-savingwaytogeneralanegativereferencevoltageforafront-endpowersupply.TheMAX828/MAX829chargepumpprovidesanegativereferencevoltage,reducespowerdissipation,andincreasesbiassupplyreliability.Additionalinformation:DatasheetfortheMAX828/MAX829Technicalsupport:powerIntelecomapplications,particularlytherectifierapplications……

CMOSRFFront-EndICA1GHzCMOSRFFront-EndICwithWideDynamicRangeA.RofougaranJ.Y-C.ChangM.RofougaranS.KhorramA.A.AbidiIntegratedCircuits&SystemsLaboratoryElectricalEngineeringDepartmentUniversityofCalifornia,LosAngelesObjectivesExploreuniquecapabilitiesofCMOSdesignfortheRFapplicationat1GHzUsewidely-available1mCMOStechnology(withnospecialenhancements)Buildsub-systematparinfunctionalitywithcommerciallyavailableRF-ICs,althoughtargetatUCLA900MHzspreadspectrumtransceiverUsestandarddesigntoolsCompareperformancewithimplementationsinothertechnologiesThefirstCMOSintegrated1GHzRFfront-end!WhyCMOSatRadioFrequencies?nCost―SubmicronCMOS,drivenbymicroprocessorandmemory,ismuchcheaperandmorewidelyava……

ModernReceiverFront-End，免费,ModernReceiverFront-End……

Designofaradiofront-endmoduleat5GHzIEEE6thCASSymp.onEmergingTechnologies:MobileandWirelessComm.Shanghai,China,May31-June2,2004DesignofaRadioFront-endModuleat5GHzShaofangGong,MagnusKarlssonandAdrianaSerbanDepartmentofTechnologyandNaturalSciences,LinkopingUniversitySE-60174Norrkoping,SwedenAbstract-Aradiofrequency(RF)front-endmoduleat5GHzhasbeendesigned.Themoduleconsistsoftwoswitches,two11.SPECIFICATIONbandpassfilters,abalun,alownoiseamplifier(LNA)andapoweramplifier(PA).Thetop-downdesignmethodologyisusedinourdesign.Firstly,themodulefunctionisspecifiedwithinputandoutput(I/O)ports.Secondly,theRFfront-endispartitionedintofunctionalblocks.High-levelsimulationscanbedonewithblockparameters.Thirdly,eachblockis……