Texas Instruments DS42MB100 Handleiding

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DE_S

MUX

LB1

EQ

EQ

EQ

DE_S

DEL_0

VCC

GND

RSV

EQS

EQL

Line Side

Switch Side

IN0 +-

IN1 +-

LB0

OUT0 +-

OUT1 +-

DE_L

DE_S

DEL_1

DES_0

DES_1

-

IN +

OUT +-

DE_L

Pre-emphasis

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DS42MB100

SNLS244H–SEPTEMBER2006–REVISEDJANUARY2016

DS42MB1004.25-Gbps2:1/1:2CMLMUX/Buffer

WithTransmitPre-EmphasisandReceiveEqualization

1Features3Description

TheDS42MB100deviceisasignalconditioning2:1

1

•2:1Multiplexerand1:2Buffer

multiplexerand1:2fan-outbufferdesignedforusein

•0.25-Gbpsto4.25-GbpsFullyDifferentialData

backplane-redundancyorcabledrivingapplications.

Paths

Signalconditioningfeaturesincludecontinuoustime

•FixedInputEqualization

linearequalization(CTLE)andprogrammableoutput

pre-emphasisthatenabledatacommunicationinFR4

•ProgrammableOutputPre-Emphasis

backplaneupto4.25Gbps.Eachinputstagehasa

•IndependentPre-EmphasisControls

fixedequalizertoreduceISIdistortionfromboard

•ProgrammableLoopbackModes

traces.

•On-ChipTerminations

Alloutputdrivershavefourselectablelevelsofpre-

•ESDRatingof6-kVHBM

emphasistocompensatefortransmissionlossesfrom

longFR4backplaneorcableattenuationreducing

•3.3-VSupply

deterministicjitter.Thepre-emphasislevelscanbe

•Lead-LessWQFN-36Package

independentlycontrolledfortheline-sideandswitch-

•–40°Cto+85°COperatingTemperatureRange

sidedrivers.Theinternalloopbackpathsfromswitch-

sideinputtoswitch-sideoutputenableat-speed

2Applications

systemtesting.Allreceiverinputsareinternally

terminatedwith100-Ωdifferentialterminating

•BackplaneDriversorCableDrivers

resistors.Alldriveroutputsareinternallyterminated

•RedundancyandSignalConditioningApplications

with50-ΩterminatingresistorstoV

CC

.

•CPRI/OBSAI

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

DS42MB100WQFN(36)6.00mm×6.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedBlockDiagram

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties