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Maxim MAX199931.2-1.7GHz下变换混频方案

来源: 中电网
2019-11-21
类别:工业控制
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文章创建人 拍明

原标题:Maxim MAX199931.2-1.7GHz下变换混频方案

  TheMAX19993dual-channeldownconverterisdesignedtoprovide6.4dBofconversiongain,+27dBminputIP3,15.4dBm1dBinputcom pressionpoint,andanoisefigureof9.8dBfor1200MHzto1700MHzdiversityreceiverapplications.Withanoptimized LOfrequencyrangeof1000MHzto1560MHz,thismixerisidealforlow-sideLOinjectionarchitectures.High-sideLOinjectionissupportedbytheMAX19993A,whichispin-pinandfunctionallycompatiblewiththeMAX19993.

Inadditiontoofferingexcellentlinearityandnoiseperformance,theMAX19993alsoyieldsahighlevelofcomponen tintegration.Thisdeviceincludestwodouble-balancedpassivemixercores,twoLObuffers,adual-inputLOselectableswitch,andapairofdifferentialIFoutputamplifiers.Integratedon-chipbalunsallowforsingle-endedRFandLOinputs.ThedevicerequiresanominalLOdriveof0dBmandatypicalsupplycurrentof337mAat VCC=+5.0Vor275mAatVCC=+3.3V.

  TheMAX19993ispincompatiblewiththeMAX9985/MAX19985A/MAX9995/MAX19993A/MAX19994/

MAX19994A/MAX19995/MAX19995 Aseriesof700MHzto2200MHzmixersandpinsimilartothe MAX19997A/ MAX19999 seriesof1850MHzto4000MHzmixers,making thisen tire fa mily ofdownconverters idealforapp licationswhereacommon PC Blayoutisuse dacrossmulti plefrequency bands.

  Thedeviceisavailableina6mmx6mm,36-pinTQFNpackagewithanexposedpad.Electricalperformanceisguaranteedovertheextendedtemperaturerange,from TC=-40NCto+85NC.

  MAX19993主要特性:

  S1200MHzto1700MHzRFFrequencyRange

  S1000MHzto1560MHzLOFrequencyRange

  S50MHzto500MHzIFFrequencyRange

  S6.4dBTypicalConversionGain

  S9.8dBTypicalNoiseFigure

  S+27dBmTypicalInputIP3

  S15.4dBmTypicalInput1dBCompressionPoint

  S72dBcTypical2RF-2LOSpuriousRejectionatPRF=-10dBm

  SDualChannelsIdealforDiversityReceiverApplications

  S47dBTypicalChannel-to-ChannelIsolation

  SLow-6dBmto+3dBmLODrive

  SIntegratedLOBuffer

  SInternalRFandLOBalunsforSingle-EndedInputs

  SBuilt-InSPDTLOSwitchwith57dBLO-to-LOIsolationand50nsSwitchingTime

  SPinCompatiblewiththeMAX9985/19985A/MAX9995/MAX19993A/MAX19994/

  MAX19994A/MAX19995/MAX19995ASeriesof700MHzto2200MHzMixers

  SPinSimilartotheMAX19997A/MAX19999Seriesof1850MHzto4000MHzMixers

  SSingle+5Vor+3.3VSupply

  SExternalCurrent-SettingResistorsProvideOptionforOperatingDeviceinReduced-Power/Reduced-PerformanceMode

  MAX19993应用:

  WCDMA/LTEBaseStations

  WirelessLocalLoop

  FixedBroadbandWirelessAccess

  PrivateMobileRadios

  MilitarySystems

  

  图1。MAX19993方框图

  

  图2。MAX19993典型应用电路图

  元件数值列表:

  

  






责任编辑:David

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标签: Maxim MAX1999

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