Maxim MAX199931.2-1.7GHz下变换混频方案
TheMAX19993dual-channeldownconverterisdesignedtoprovide6.4dBofconversiongain,+27dBminputIP3,15.4dBm1dBinputcompressionpoint,andanoisefigureof9.8dBfor1200MHzto1700MHzdiversityreceiverapplications.WithanoptimizedLOfrequencyrangeof1000MHzto1560MHz,thismixerisidealforlow-sideLOinjectionarchitectures.High-sideLOinjectionissupportedbytheMAX19993A,whichispin-pinandfunctionallycompatiblewiththeMAX19993.
Inadditiontoofferingexcellentlinearityandnoiseperformance,theMAX19993alsoyieldsahighlevelofcomponentintegration.Thisdeviceincludestwodouble-balancedpassivemixercores,twoLObuffers,adual-inputLOselectableswitch,andapairofdifferentialIFoutputamplifiers.Integratedon-chipbalunsallowforsingle-endedRFandLOinputs.ThedevicerequiresanominalLOdriveof0dBmandatypicalsupplycurrentof337mAatVCC=+5.0Vor275mAatVCC=+3.3V.
TheMAX19993ispincompatiblewiththeMAX9985/MAX19985A/MAX9995/MAX19993A/MAX19994/MAX19994A/MAX19995/MAX19995Aseriesof700MHzto2200MHzmixersandpinsimilartotheMAX19997A/MAX19999seriesof1850MHzto4000MHzmixers,makingthisentirefamilyofdownconvertersidealforapplicationswhereacommonPCBlayoutisusedacrossmultiplefrequencybands.
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