femtocellclienthold
clienthold 时间:2021-01-17 阅读:(
)
ZL30723Dual-ChannelIEEE1588andSyncEPacketClockNetworkSynchronizerProductBriefJanuary20161MicrosemiCorporationCopyright2016.
MicrosemiCorporation.
AllRightsReserved.
FeaturesPacketNetworkFrequencyandPhaseSyncFrequencyaccuracyforGSM,WCDMA-FDD,LTE-FDDbasestationsandsmallcellsFrequencyperformanceforITU-TG.
823andG.
824synchronizationinterface,G.
8261PNTPECandCESinterfacesandG.
8263PEC-S-FPhasesynchronizationperformanceforWCDMA-TDD,TD-SCDMA,CDMA2000,LTE-TDDandLTE-AapplicationsClientholdoverandreferenceswitchingbetweenmultipleserversSupportfornewITU-Tpacketclockdraftsorrecs:G.
8263PEC,G.
8273.
2T-BC&T-TSCw/oSyncE,andG.
8273.
4T-BC-P&T-TSC-PHybridmodeformixingSyncEandIEEE1588PhysicalLayerClockSynchronizationITU-TG.
8262SyncEEECoptions1and2Low-BandwidthDPLLPerChannelProgrammablebandwidth,0.
1Hzto500HzHitlessreferenceswitchingHigh-resolutionholdoveraveragingNumericallycontrolledoscillatormodeThreeInputClocksPerChannelThreeinputs,twodifferential/CMOS,oneCMOSAnyinputfrequencyfrom8kHzto1250MHz(8kHzto300MHzforCMOS)Per-inputactivityandfrequencymonitoringLow-JitterFrac-NAPLL,3OutputsPerChannelAnyoutputfrequencyfrom<1Hzto1035MHzHigh-resolutionfractionalfrequencyconversionwith0ppmerrorEncapsulateddesignrequiresnoexternalVCXOorloopfiltercomponentsOutputjitteraslowas0.
25psRMS(12kHz-20MHzintegrationband)OutputsareCMLor2xCMOS,caninterfacetoLVDS,LVPECL,HSTL,SSTLandHCSPer-outputsupplypinwithCMOSoutputvoltagesfrom1.
5Vto3.
3VPreciseoutputalignmentcircuitryandper-outputphaseadjustmentPer-outputenable/disableandglitchlessstart/stop(stophighorlow)GeneralFeaturesAutomaticself-configurationatpower-upfrominternalEEPROM;uptofourconfigurationsInput-to-outputalignmentwithexternalfeedbackSPIorI2CprocessorInterfaceEasy-to-useevaluationsoftwareFigure1-FunctionalBlockDiagramOrderingInformationZL30723LFG764PinLGATraysZL30723LFF764PinLGATapeandReelNiAuPackagesize:5x10mm-40Cto+85CZL30723ProductBrief2MicrosemiCorporation1.
ApplicationExamplesFigure2–TelecomTimingCardApplication2.
DetailedFeatures2.
1TimeSynchronizationAlgorithmExternalalgorithmcontrolssoftwaredigitalPLLtoadjustfrequencyandphasealignmentFrequency,phaseandtimesynchronizationoverIP,MPLSandEthernetpacketnetworksFrequencyaccuracyperformanceforGSM,WCDMA-FDD,LTE-FDDfemtocell,smallcell(residential,urban,rural,enterprise),picocellandmacrocellapplications,withtargetperformancelessthan±15ppbFrequencyperformanceforITU-TG.
8263forPEC-S-F(PacketEquipmentClock-Slave-Frequency)FrequencyperformanceforITU-TG.
823andG.
824synchronizationinterface,aswellasG.
8261PNTEEC,PNTPECandCESinterfacespecificationsPhasesynchronizationperformanceforWCDMA-TDD,MobileWiMAX,TD-SCDMA,CDMA2000,LTE-TDDandLTE-Afemtocell,smallcell(residential,urban,rural,enterprise),picocellandmacrocellapplicationswithtargetperformancelessthan±1sphasealignment.
PhaseperformanceforITU-TpacketclockdraftsorrecommendationsindevelopmentoITU-TG.
8273.
2T-BC,T-TSCoITU-TG.
8273.
4T-BC-P,T-TSC-PTimeSynchronizationforTAI,UTC-traceabilityandGNSS/GPSreplacement.
ClientreferenceswitchingbetweenmultipleserversClientholdoverwhenserverpacketconnectivityislostClientsynchronizationtobestserverwithmonitoringofsecondaryserverreferences2.
2InputClockFeaturesThreeinputclocksperchannel,twodifferentialorsingle-ended,onesingle-endedInputclockscanbeanyfrequencyfrom8kHzupto1250MHz(differential)or300MHz(single-ended)SupportedtelecomfrequenciesincludePDH,SDH,SynchronousEthernet,OTN,wirelessInputsconstantlymonitoredbyprogrammableactivitymonitorsandfrequencymonitorsFastactivitymonitorcandisqualifytheinputafterafewmissingclockcyclesFrequencymeasurementandmonitoringwith1ppmresolutionandaccept/rejecthysteresisOptionalinputclockinvalidationonGPIOassertiontoreacttoLOSsignalsfromPHYs2.
3ElectricalClockEngineFeaturesTwointernalDPLLs,oneperchannelVeryhigh-resolutionDPLLarchitectureStatemachineautomaticallytransitionsbetweentrackingandfreerun/holdoverstatesRevertiveornonrevertivereferenceselectionalgorithmProgrammablebandwidthfrom0.
1Hzto500HzLessthan0.
1dBgainpeakingProgrammablephase-slopelimitingProgrammabletrackingrange(i.
e.
hold-inrange)ZL30723ProductBrief3MicrosemiCorporationTrulyhitlessreferenceswitchingwith<200psoutputclockphasetransientoPhysical-clock-to-physical-clockreferenceswitchingoPhysical-clock-to-packet-timingreferenceswitchingoPacket-timing-to-physical-clockreferenceswitchingoPacket-timing-to-packet-timingreferenceswitchingSupportforSyncEandSONET/SDHequipmentclockspecificationsoITU-TG.
8262option1EECoITU-TG.
8262option2EECoITU-TG.
813option1SECoIUT-TG.
813option2SECOutputphaseadjustmentin10psstepsHigh-resolutionfrequencyandphasemeasurementFastdetectionofinputclockfailureandtransitiontoholdovermodeHoldoverfrequencyaveragingwithprogrammableaveragingtimeanddelaytime2.
4APLLFeaturesAPLLwithveryhigh-resolutionfractionalscaling(i.
e.
non-integer)perchannelAny-to-anyfrequencyconversionwith0ppmerrorTwohigh-speeddividers(integers4to15,halfdivides4.
5to7.
5)Easy-to-configure,completelyencapsulateddesignrequiresnoexternalVCXOorloopfiltercomponentsBypassmodesupportssystemtesting2.
5OutputClockFeaturesThreelow-jitteroutputclocksperchannelEachoutputcanbeonedifferentialoutputortwoCMOSoutputsOutputclockscanbeanyfrequencyfrom1Hzto1035MHz(250MHzmaxforCMOSandHSTLoutputs)Outputjitteraslowas0.
25psRMS(12kHzto20MHz)InCMOSmode,anadditionaldividerallowstheOCxNpintobeanintegerdivisoroftheOCxPpin(Example1:OC3P125MHz,OC3N25MHz.
Example2:OC2P25MHz,OC2N1Hz)OutputseasilyinterfacewithCML,LVDS,LVPECL,HSTL,SSTL,HCSLandCMOScomponentsSupportedtelecomfrequenciesincludePDH,SDH,SynchronousEthernet,OTNSophisticatedoutput-to-outputphasealignmentPer-outputphaseadjustmentwithhighresolutionandunlimitedrangePer-outputenable/disablePer-outputglitchlessstart/stop(stophighorlow)2.
6GeneralFeaturesSPIorI2CserialmicroprocessorinterfaceperchannelAutomaticself-configurationatpower-upfrominternalEEPROMmemory;pincontroltospecifyoneoffourstoredconfigurationsNumericallycontrolledoscillator(NCO)behaviorallowssystemsoftwaretosteerDPLLfrequencywithresolutionbetterthan0.
01ppbInput-to-outputalignmentwithexternalfeedbackFourgeneral-purposeI/OpinsperchanneleachwithmanypossiblestatusandcontroloptionsOutputframesyncsignals:2kHzor8kHz(SONET/SDH),1Hz(IEEE1588)orotherfrequencyInternalcompensationforlocaloscillatorfrequencyerror2.
7APISoftwareInterfacesto1588-capablePHYsandswitcheswithintegratedtimestampingAbstractionlayerforindependencefromOSandCPU,fromembeddedSoCtohome-grownFitsintocentralized,highlyintegrated"pizzabox"architecturesaswellasdistributedarchitectureswithmultiplelinecardsandtimingcardsZL30723ProductBrief4MicrosemiCorporation3.
ApplicationsITU-TG.
8262systemtimingcardsforSynchronousEthernetsystemsSystemtimingcardswhichsupportITU-TG.
781SETS(SDHEquipmentTimingSource)IntegratedbasestationreferencesynchronizationforairinterfacesforoGSM,WCDMA,TD-SCDMA,LTEandLTE-AoFDDorTDDmobiletechnologyoFemtocells,smallcells(residential,urban,rural,enterprise),picocellsandmacrocellsMobileBackhaulNID,cell-siterouter,edgeswitch/router,microwaveoraccessaggregationnodeEPON/GPONOLTandONU/ONTDSLAMandRT-DSLAM10G,40Gand100GlinecardsSONET/SDH,FibreChannel,XAUI4.
PinDiagramThedeviceispackagedina5x10mm64-pinLGA.
Figure3-PinDiagramZL30723ProductBrief5MicrosemiCorporation5.
MechanicalDrawingSYMBOLCOMMONDIMENSIONSMINTYPMAXTOTALTHICKNESSA------1SUBSTRATETHICKNESSA10.
19REFMOLDTHICKNESSA20.
7REFBODYSIZED10BSCE5BSCLEADWIDTHW0.
20.
250.
3LEADLENGTHL0.
350.
40.
45LEADPITCHe0.
4BSCLEADCOUNTn64EDGELEADCENTERTOCENTERD18.
4BSCE13.
6BSCBODYCENTERTOLEADSD0.
2BSCSE0.
2BSCPACKAGEEDGETOLERANCEaaa0.
1MOLDFLATNESSbbb0.
2COPLANARITYddd0.
08Dimensionsinmm.
MicrosemiCorporateHeadquartersOneEnterpriseAlisoViejo,CA92656USAWithintheUSA:+1(800)713-4113OutsidetheUSA:+1(949)380-6100Sales:+1(949)380-6136Fax:+1(949)215-4996E-mail:sales.
support@microsemi.
com2016MicrosemiCorporation.
Allrightsreserved.
MicrosemiandtheMicrosemilogoaretrademarksofMicrosemiCorporation.
Allothertrademarksandservicemarksarethepropertyoftheirrespectiveowners.
MicrosemiCorporation(Nasdaq:MSCC)offersacomprehensiveportfolioofsemiconductorandsystemsolutionsforcommunications,defense&security,aerospaceandindustrialmarkets.
Productsincludehigh-performanceandradiation-hardenedanalogmixed-signalintegratedcircuits,FPGAs,SoCsandASICs;powermanagementproducts;timingandsynchronizationdevicesandprecisetimesolutions,settingtheworld'sstandardfortime;voiceprocessingdevices;RFsolutions;discretecomponents;securitytechnologiesandscalableanti-tamperproducts;Power-over-EthernetICsandmidspans;aswellascustomdesigncapabilitiesandservices.
MicrosemiisheadquarteredinAlisoViejo,Calif.
,andhasapproximately3,400employeesglobally.
Learnmoreatwww.
microsemi.
com.
Microsemimakesnowarranty,representation,orguaranteeregardingtheinformationcontainedhereinorthesuitabilityofitsproductsandservicesforanyparticularpurpose,nordoesMicrosemiassumeanyliabilitywhatsoeverarisingoutoftheapplicationoruseofanyproductorcircuit.
TheproductssoldhereunderandanyotherproductssoldbyMicrosemihavebeensubjecttolimitedtestingandshouldnotbeusedinconjunctionwithmission-criticalequipmentorapplications.
Anyperformancespecificationsarebelievedtobereliablebutarenotverified,andBuyermustconductandcompleteallperformanceandothertestingoftheproducts,aloneandtogetherwith,orinstalledin,anyend-products.
BuyershallnotrelyonanydataandperformancespecificationsorparametersprovidedbyMicrosemi.
ItistheBuyer'sresponsibilitytoindependentlydeterminesuitabilityofanyproductsandtotestandverifythesame.
TheinformationprovidedbyMicrosemihereunderisprovided"asis,whereis"andwithallfaults,andtheentireriskassociatedwithsuchinformationisentirelywiththeBuyer.
Microsemidoesnotgrant,explicitlyorimplicitly,toanypartyanypatentrights,licenses,oranyotherIPrights,whetherwithregardtosuchinformationitselforanythingdescribedbysuchinformation.
InformationprovidedinthisdocumentisproprietarytoMicrosemi,andMicrosemireservestherighttomakeanychangestotheinformationinthisdocumentortoanyproductsandservicesatanytimewithoutnotice.
小渣云 做那个你想都不敢想的套餐 你现在也许不知道小渣云 不过未来你将被小渣云的产品所吸引小渣云 专注于一个套餐的商家 把性价比 稳定性 以及价格做到极致的商家,也许你不相信36元在别人家1核1G都买不到的价格在小渣云却可以买到 8核8G 高配云服务器,并且在安全性 稳定性 都是极高的标准。小渣云 目前使用的是美国超级稳定的ceranetworks机房 数据安全上 每5天备份一次数据倒异地 支持一...
公司介绍成都随风云科技有限公司成立于2021年,是国内领先的互联网业务平台服务提供商。公司专注为用户提供低价高性能云计算产品,致力于云计算应用的易用性开发,并引导云计算在国内普及。目前公司研发以及运营云服务基础设施服务平台(IaaS),面向全球客户提供基于云计算的IT解决方案与客户服务,拥有丰富的国内BGP、双线高防、香港等优质的IDC资源。公司一直秉承”以人为本、客户为尊、永续创新&...
月付/年付优惠码:zji 下物理服务器/VDS/虚拟主机空间订单八折终身优惠(长期有效)一、ZJI官网点击直达ZJI官方网站二、特惠香港日本服务器香港大埔:http://hkdb.speedtest.zji.net/香港葵湾:http://hkkw.speedtest.zji.net/日本大阪:http://jpsk.speedtest.zji.net/日本大阪一型 ...
clienthold为你推荐
域名注册怎样进行域名注册虚拟主机租用虚拟主机服务器租用要怎么选择?网站空间域名网站空间,域名,操作国外主机空间可以购买国外主机(空间一样吗?)来做私服吗?网站空间购买网站空间购买注意事项北京网站空间自己弄一个简单的网站,大概需要办理什么,大概需要多少钱?mysql虚拟主机哪些类型的虚拟主机支持数据库?成都虚拟主机成都哪个公司建网站最好windows虚拟主机虚拟机的windows和原来的windows什么关系asp虚拟主机支持ASP MSSQL 的虚拟主机有哪些推荐
看国外视频直播vps 域名主机管理系统 n点虚拟主机管理系统 t楼 vmsnap3 godaddy域名优惠码 国外空间 php免费空间 免费个人空间 最好的免费空间 可外链相册 无限流量 免费外链相册 网购分享 云营销系统 摩尔庄园注册 主机返佣 实惠 腾讯云平台 碳云 更多