ADIADF4355微波寬帶(54-6800MHz)頻率合成器解決處理辦法

,.ADIADF4355微波寬帶(54－6800MHz)頻率合成器解決方案ADI公司的ADF4355是微波寬帶(54-6800MHz)可實(shí)現(xiàn)小數(shù)N分頻或整數(shù)N分頻鎖相環(huán)感謝閱讀(PLL)的頻率合成器,高分辨率38位模數(shù),低相位噪聲電壓控制振蕩器(VCO),可編程感謝閱讀1/2/4/8/16/32/64分頻輸出,模擬和數(shù)字電源為3.3V,主要用在無(wú)線基礎(chǔ)設(shè)施精品文檔放心下載（W-CDMA,TD-SCDMA,WiMAX,GSM,PCS,DCS,DECT）,點(diǎn)到點(diǎn)/點(diǎn)到多點(diǎn)微波鏈路,衛(wèi)星謝謝閱讀/VSAT,測(cè)試設(shè)備/儀器儀表和時(shí)鐘產(chǎn)生.本文介紹了ADF4355主要特性,框圖和幾種應(yīng)用電謝謝閱讀路,以及評(píng)估板EV-ADF4355SD1Z主要特性,電路圖,材料清單和PCB設(shè)計(jì)圖.謝謝閱讀TheADF4355allowsimplementationoffractional-Norinteger-Nphase-locked感謝閱讀loop(PLL)frequencysynthesizerswhenusedwithanexternalloopfilterandan謝謝閱讀externalreferencefrequency.Aseriesoffrequencydividerspermitsoperationfrom精品文檔放心下載54MHzto6800MHz.TheADF4355hasanintegratedVCOwithafundamentaloutputfrequencyranging感謝閱讀from3400MHzto6800MHz.Inaddition,theVCOfrequencyisconnectedtodivide精品文檔放心下載by1,2,4,8,16,32,or64circuitsthatallowtheusertogenerateRFoutput感謝閱讀frequenciesaslowas54MHz.Forapplicationsthatrequireisolation,theRFoutput精品文檔放心下載stagecanbemuted.Themutefunctionisbothpinandsoftwarecontrollable.感謝閱讀Controlofallon-chipregistersisthroughasimple3-wireinterface.TheADF4355謝謝閱讀operateswithanaloganddigitalpowersuppliesrangingfrom3.15Vto3.45V,with感謝閱讀,.chargepumpandVCOsuppliesfrom4.75Vto5.25V.TheADF4355alsocontains謝謝閱讀hardwareandsoftwarepower-downmodes.精品文檔放心下載ADF4355主要特性:RFoutputfrequencyrange:54MHzto6800MHz感謝閱讀Fractional-Nsynthesizerandinteger-Nsynthesizer謝謝閱讀Highresolution38-bitmodulus精品文檔放心下載Lowphasenoise,voltagecontrolledoscillator(VCO)謝謝閱讀Programmabledivideby1,2,4,8,16,32,or64output感謝閱讀Analoganddigitalpowersupplies:3.3V精品文檔放心下載ChargepumpandVCOpowersupplies:5.0Vtypical精品文檔放心下載Logiccompatibility:1.8V精品文檔放心下載Programmabledualmodulusprescalerof4/5or8/9謝謝閱讀Programmableoutputpowerlevel精品文檔放心下載RFoutputmutefunction3-wireserialinterfaceAnaloganddigitallockdetect謝謝閱讀ADF4355應(yīng)用:Wirelessinfrastructure(W-CDMA,TD-SCDMA,WiMAX,GSM,PCS,DCS,DECT)感謝閱讀,.Pointtopoint/pointtomultipointmicrowavelinks感謝閱讀Satellites/VSATsTestequipment/instrumentation感謝閱讀Clockgeneration圖1.ADF4355功能框圖,.圖2.ADF4355直接轉(zhuǎn)換調(diào)制器電路圖圖3.ADF4355功電源電路圖評(píng)估板EV-ADF4355SD1Z,.TheEV-ADF4355SD1ZevaluatestheperformanceoftheADF4355frequency謝謝閱讀synthesizerwithintegratedVCOforphase-lockedloops(PLLs).Aphotographof謝謝閱讀theevaluationboardisshowninFigure1.Theevaluationboardcontainsthe精品文檔放心下載ADF4355frequencysynthesizerwithintegratedVCO,adifferential122.88MHz感謝閱讀reference(TCXO),aloopfilter,aUSBinterface,powersupplyconnectors,and謝謝閱讀subminiatureVersionA(SMA)connectors.AUSBcableisincludedtoconnectthe感謝閱讀boardtoaPCUSBport.Foreasyprogrammingofthesynthesizer,downloadthe感謝閱讀Windows-basedsoftwarefrom/ADF4355.Thisboardrequiresan精品文檔放心下載SDP-S(showninFigure1,butnotsuppliedwiththekit).TheSDP-Sallowssoftware謝謝閱讀programmingoftheEV-ADF4355SD1Zdevice.感謝閱讀評(píng)估板EV-ADF4355SD1Z主要特性:Selfcontainedboard,includingADF4355frequency精品文檔放心下載synthesizerwithintegratedVCO,differential122.88MHz謝謝閱讀temperaturecontrolledcrystaloscillator(TCXO),loop精品文檔放心下載filter(20kHz),USBinterface,andvoltageregulators精品文檔放心下載Windows?-basedsoftwareallowscontrolofsynthesizerfunctionsfromaPC感謝閱讀Externallypoweredby6V,.圖4.評(píng)估板EV-ADF4355SD1Z外形圖精品文檔放心下載圖5.評(píng)估板EV-ADF4355SD1Z電路圖(1)感謝閱讀,.圖6.評(píng)估板EV-ADF4355SD1Z電路圖(2)謝謝閱讀,.圖7.評(píng)估板EV-ADF4355SD1Z電路圖(3)謝謝閱讀評(píng)估板EV-ADF4355SD1Z材料清單:,.,.圖8.評(píng)估板EV-ADF4355SD1ZPCB設(shè)計(jì)圖(1)感謝閱讀,.圖9.評(píng)估板EV-ADF435