Texas Instruments CDCLVD1212 Handleiding

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CDCLVD1212

LVDS Buffer

IN_SEL

PHY2

PHY2

PHY2

PHY2

125MHz

125MHz

Oscillator

2

PHY2

PHY2

PHY2

PHY12

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AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

CDCLVD1212

SCAS901D–SEPTEMBER2010–REVISEDNOVEMBER2017

CDCLVD12122:12LowAdditiveJitterLVDSBuffer

1

1Features

1

•2:12DifferentialBuffer

•LowAdditiveJitter:<300-fsRMSin

10-kHzto20-MHz

•LowOutputSkewof35ps(Maximum)

•UniversalInputsAcceptLVDS,LVPECL,and

LVCMOS

•SelectableClockInputsThroughControlPin

•12LVDSOutputs,ANSIEIA/TIA-644AStandard

Compatible

•ClockFrequency:Upto800MHz

•DevicePowerSupply:2.375Vto2.625V

•LVDSReferenceVoltage,V

AC_REF

,Availablefor

CapacitiveCoupledInputs

•IndustrialTemperatureRange:–40°Cto85°C

•Packagedin6-mm×6-mm,40-PinVQFN(RHA)

•ESDProtectionExceeds3-kVHBM,1-kVCDM

2Applications

•TelecommunicationsandNetworking

•MedicalImaging

•TestandMeasurementEquipment

•WirelessCommunications

•General-PurposeClocking

3Description

TheCDCLVD1212clockbufferdistributesoneoftwo

selectableclockinputs(IN0andIN1)to12pairsof

differentialLVDSclockoutputs(OUT0through

OUT11)withminimumskewforclockdistribution.

TheCDCLVD1212canaccepttwoclocksourcesinto

aninputmultiplexer.TheinputscaneitherbeLVDS,

LVPECL,orLVCMOS.

TheCDCLVD1212isspecificallydesignedfordriving

50-Ωtransmissionlines.Incaseofdrivingtheinputs

insingle-endedmode,theappropriatebiasvoltage,

V

AC_REF

,mustbeappliedtotheunusednegative

inputpin.

TheIN_SELpinselectstheinputwhichisroutedto

theoutputs.Ifthispinisleftopen,itdisablesthe

outputs(static).Thepartsupportsafail-safefunction.

Thedeviceincorporatesaninputhysteresiswhich

preventsrandomoscillationoftheoutputsinthe

absenceofaninputsignal.

Thedeviceoperatesin2.5-Vsupplyenvironmentand

ischaracterizedfrom–40°Cto85°C(ambient

temperature).TheCDCLVD1212ispackagedin

small,40-pin,6-mm×6-mmVQFNpackage.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

CDCLVD1212VQFN(40)6.00mm×6.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

ApplicationExample

Product specificaties