第第頁AMD推出個(gè)人計(jì)算機(jī)家庭劇院解決方案AMD推出最新解決方案THEATER311,312和314,它是ATI公司最新的DTV接收器/解調(diào)器IC器件,非常適合有數(shù)字有線電視功能的電視機(jī)和雙調(diào)諧器(畫中畫)的應(yīng)用.這種低功耗的器件包括高性能的ADC,AGC功能,正向誤差修正(FEC)和I2C控制接口.此外,還具有內(nèi)置的比特誤碼速率測試功能.這些器件能把高畫質(zhì)電視(HDTV)觀賞與數(shù)字錄像(DVR)功能帶入桌上型及筆記型計(jì)算機(jī)之中。外接式且能隨插即用的ATITVWonder600USB，能使桌上型或筆記型計(jì)算機(jī)轉(zhuǎn)變成支持高畫質(zhì)電視的多功能數(shù)字錄像機(jī)。安裝TVWonder650ComboPCIe為一款多功能電視卡，能擷取當(dāng)?shù)乜罩袕V播與有線電視的節(jié)目內(nèi)容，其中當(dāng)然也包括HDTV格式的節(jié)目內(nèi)容。AMD家庭影院解決方案THEATERamp;#8482;311,312,and314arethelatestinATIsindustryleadinglineofDTVReceiver/demodulatorICproducts.ThenewdevicesareoptimizedforDigitalCableReadytelevisionsets,dualtuner(pictureinpicture)applications,andsatellitesettopboxes.TheyarecompletedigitaldemodulatordeviceswhichreceivetheanalogbroadcastsignalandoutputtherecovereddigitalMPEGdatastream.Thesecompactlowpowerproductsincludehighperformanceanalogtodigitalconverters,AGCfunctions,ForwardErrorCorrection,andanI2Ccontrolinterface.TheyalsoincludebuiltinBitErrorRateTestcapabilities.TheTheater#8482;311,312,and314incorporateunique“SearchandDestroy”interferencecancellationandotheradvancedtechniquesprovidingsignalreceptionundertoughconditionswhenothertechnologiescompletelyfailtoreceiveasignal.Theater314,312,and311compriseafamilyofadvancedQAMandVSBdemodulatorICsfortheDigitalCableReadyandATSCenvironments.TheTheater314(T314)isconfigurabletooperateineithertheITUJ.83B/SCTEDVS031compliant64QAMor256QAMmodesusedbydigitalcablesystems,ortheATSCcompliant8VSBmodeusedindigitalterrestrialbroadcasting.Fordigitallymodulatedinputsignals(QAMor8VSB),Theater314outputsaparallelorserialMPEGcomplianttransportstream.FortheoutofbandFDC,Theater314performstheQPSKdemodulationandprovidesadirectdigitalinterface(clockanddata)toCableCARDsTM.TheTheater312(T312)offersthesamefunctionalitywithouttheFDCoutofbandreceiver.Theater311(T311)offersjusttheVSBdemodulatorfunctionforATSCcompliantTVsetsandsatellitesettopboxapplications.Theater314/312/311demodulatorsenableequipmentmanufacturerstodeliverhighperformanceproductstoconsumers.Theater314/312offersexceptionalperformanceinthecableenvironment.Theiradaptiveblindequalizationalgorithmsallowforfastacquisitiontimes,whileinterferencedetectionandmitigationalgorithmsproviderobustperformanceinthepresenceofburstnoiseandadjacentchannelinterference.Fordigitalterrestrialreception,theadvancedequalizerintheTheater314/312/311providesexceptionaldynamicandstaticmultipathperformance.Superiorperformanceinharshenvironmentsisachievedbytheuseofrobustsynchronizationandequalizationalgorithms.Furthermore,Theater314/312/311shighlevelofintegrationallowsmanufacturerstodevelophighperformance,highfunctionalityproductsinaspaceandcosteffectivemanner.TheTheater314/312/311areidealforavarietyofapplicationsincludingdigitalterrestrial/cabletelevisionreceivers,settopboxes,andsatellitereceivers.特性和優(yōu)勢:WorldleadingTheaterATSCVSBreceptiontechnologyOpenCable/DigitalCableReadyQAM/QPSKdemodulatorLowpower/lowcosttechnologyPincompatibilitybetweenT314,T312,andT311Completesupportpackagewithreferencedesign,documentationandsoftwareMakesTVreceiverdesignsmoreresistanttosignalinterferenceanddistortionEnablesequipmenttopassallCableLabscertificationtestsBringshighperformancereceivertechnologytocostandpowersensitiveapplicationsSimplifiedboarddesignReducesengineeringeffortneededfornewdesignsTHEATER311,312和314系統(tǒng)方框圖:Thebroadcastsignal(RF)isfirstsplitintoForwardApplicationTransport(FAT)andForwardDataChannel(FDC)components.TheFATchannelisappliedtoadigital/analogtunerandconvertedtoanIFsignal.TheIFsignalisfilteredandamplifiedbyasinglestageIFstripandtheninputtotheTHEATER314.TheincomingIFsignaliscapturedbytheTHEATER314anddemodulatedtoanMPEGcompliantTransportStream.TheTransportStreamissuppliedtotheXILLEONprocessorfordecodinganddisplay.TheFDCchannelisappliedtoFDCIFStripcircuitryconsistingofafilteringandamplificationstageandanOut