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标签: rf9938

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如何用通用的I/Q支路调制器实现BPSK调制？

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时间: 2020-1-15 10:15

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RF9938RF99386TypicalApplicationsCDMA/TDMA/DCS1900PCSSystemsPHS1500/WLAN2400SystemsGeneralPurposeUpconverterBPSKModulationMicro-CellPCSBaseStationsPortableBattery-PoweredEquipmentPCSUPCONVERTER/BPSKMODULATORProductDescriptionTheRF9938isacompleteupconverterdesignedforPCSapplications.TheICcontainsadouble-balancedmixerstageandanoutputbufferamplifierstage.ThisdevicemayalsobeusedtodirectlyBPSKmodulateacarrier.ThemixerisaGilbertcellwithemitterdegenerationresistorstoprovidehighIP3.Theoutputstageisaclass-B,push-pullconfigurationtoreducetheoverallcurrentandstillprovideagood50outputmatch.Theunitoperatesat3.6VandisdesignedaspartoftheRFMDPCSCDMAChipSet,consistingofaTransmitIFAGCAm……

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