Texas Instruments LMH1218 Bedienungsanleitung
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OUT0+
OUT0-
OUT
OUT
LMH1218
:
4.7 PF
IN0-
IN0+
FPGA
100: Differential T-Line
OUT1+
OUT1-
IN+
Optical Module
100: Differential T-Line
4.7 PF
OUT
OUT
FPGA
100: Differential T-Line
IN1-
IN1+
MODE_SEL
SS_N
SCK
MOSI
LOS_INT_N
MISO
ENABLE
VSS
VDD
LOCK
:T-Line
4.7 PF
4.7 PF
DAP
IN-
0.1 PF
0.01 PF
VSS
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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
LMH1218
SNLS474E–FEBRUARY2015–REVISEDJUNE2018
LMH1218LowPowerUltraHDCableDriverWithIntegratedReclocker
1
1Features
1
•SupportsST-2082(Proposed),ST-2081
(Proposed),SMPTE424M,344M,292M,259M,
DVB-ASI,SFF-8431(SFP+)and10GbEEthernet
forSMPTE2022-5/6
•LockstoRates11.88Gbps,5.94Gbps,2.97
Gbps,1.485Gbps,orDividedby1.001Sub-
Rates,DVB-ASI(270Mbps)and10GbE(10.3125
Gbps)
•Reference-FreeOperationWithFastLockTime
CoveringAllSupportedorSelectedDataRates
•75-Ωand100-ΩTransmitterOutputs
•Integrated2:1MuxInput,1:2Demux/Fanout
Outputs
•AutomaticSlewRateBasedonInputRateDetect
•On-ChipEyeMonitor
•Low300-mWPowerConsumptionWithAutomatic
PowerDownonLossofInputSignal
•ProgrammableThroughSPIorSMBusInterface
•Single2.5-VSupplyOperation
•Small4-mm×4-mm24-PinWQFNPackage
•–40°Cto+85°COperatingTemperatureRange
2Applications
•UHDTV/4K/8K/HDTV/SDTVVideo
•DigitalVideoRoutersandSwitches
•DigitalVideoProcessingandEditing
•DVB-ASIandDistributionAmplifiers
•10GbEforSMPTE2022-5/6
3Description
TheLMH1218deviceisalow-powercabledriverwith
integratedreclockertodriveserialvideodata
compatibletoSMPTE-SDI,SMPTE2022-5/6,10GbE
Ethernet,andDVB-ASIstandards.TheLMH1218
supportsupto11.88GbpstoenableUltraHigh
DefinitionVideofor4K/8Kapplications.With75-Ω
and50-Ωtransmitteroutputs,theLMH1218enables
multiplemediaoptionssuchascoax,fiber,andFR-4
PCB.
Theintegrated2-to-1MUXontheinputofthe
LMH1218enablesselectionbetweentwovideo
sources,whiletheprogrammableequalizer
compensatesfortheprinted-circuitboardlossto
extendsignalreach.Withawiderangeclock-and-
datarecovery(CDR)circuit,theon-chipreclocker
automaticallydetectsandlockstoserialdatafrom
270Mbpsto11.88Gbpswithouttheneedforan
externalreferenceclockandloopfiltercomponent,
therebysimplifyingboarddesignandloweringsystem
cost.Thereclockedserialdatacanberoutedto
eitherthe75-Ωor50-Ωtransmitteroutput,orboth
simultaneously(1-to-2fanoutmode).Theoutput
voltageswingiscompatibletoSFF-8431(SFP+),ST-
2082/1(Proposed),SMPTE424M,344M,292M,and
259Mstandards.
Anon-disruptiveeyemonitorallowsforreal-time
measurementofserialdatatosimplifysystemstart-
uporfieldtuning.TheLMH1218canbeprogrammed
usingSPIorSMBusInterface.
DeviceInformation
(1)
PARTNUMBERPACKAGEBODYSIZE(NOM)
LMH1218WQFN(24)4.00mm×4.00mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
SimplifiedSPISchematic
Produktspezifikationen
| Marke: | Texas Instruments |
| Kategorie: | Nicht kategorisiert |
| Modell: | LMH1218 |
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