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1.5Gbps
2
23
− 1 prbs
v
抄送
= 3.3 v
v
id
= 200 mv, v
集成电路
= 1.2 v
水平 缩放= 200 ps/div
vertical 缩放=200 mv/div
眼睛patterns 的 产出
歌剧婷 同时
mux
1DE
1A
1B
S0
S1
2A
2B
2DE
1Y
1Z
2Y
2Z
综合termination 开启 sn65lvdt122 仅
输出 1
输出 2
110
Ω
110
Ω
SN65LVDS122
SN65LVDT122
SLLS525B–MAY2002–REVISEDJUNE2004
1.5-gbps2
×
2LVDSCROSSPOINTSWITCH
•
DesignedforSignalingRates
(1)
上至
TheSN65LVDS122andSN65LVDT122are
1.5gbps
crosspointswitchesthatuselowvoltagedifferential
信令(lvds)toachievesignalingratesashigh
•
totaljitter&指示灯;65ps
as1.5gbps.theyarepin-compatiblespeedup-
•
管脚-compatiblewithsn65lvds22and
gradestothesn65lvds22andsn65lvdm22.这
SN65LVDM22
internalsignalpathsmaintaindifferentialsignalingfor
•
25mVofReceiverInputThresholdHysteresis
highspeedsandlowsignalskews.thesedevices
over0-vto4-vcommon-moderange
havea0-vto4-vcommon-modeinputrangethat
acceptslvds,lvpecl,orcmlinputs.twologic
•
inputselectricallycompatiblewithcml,
针脚(s0ands1)settheinternalconfigurationbe-
LVPECLandLVDSSignalLevels
tweenthedifferentialinputsandoutputs.thisallows
•
propagationdelaytimes,900psmaximum
theflexibilitytoperformthefollowingconfigurations:
•
lvdtintegrates110-
Ω
TerminatingResistor
2x2crosspointswitch,2:1inputmultiplexer,1:2
splitterordualrepeater/translatorwithinasingle
•
OfferedinSOICandTSSOP
设备.另外,sn65lvdt122incorporatesa
110-
Ω
terminationresistorforthoseapplications
whereboardspaceisapremium.althoughthese
•
10-g(oc-192)opticalmodules
devicesaredesignedfor1.5gbps,someapplications
•
622-mhzcentralofficeclockdistribution
ata2-gbpsdataratecanbesupporteddependingon
loadingandsignalquality.
•
WirelessBasestations
•
lowjitterclockrepeater/多路复用器
Theintendedapplicationofthisdeviceisidealfor
loopbackswitchingfordiagnosticroutines,扇出
•
ProtectionSwitchingforSerialBackplanes
bufferingofclock/datadistributionprovideprotection
infault-tolerantsystems,clockmultiplexinginoptical
模块,andforoverallsignalboostingover
extendeddistances.
(1)thesignlaingrateofalineisthenumberofvoltage
TheSN65LVDS122andSN65LVDT122are
transitionsthataremadepersecondexpressedintheunits
characterizedforoperationfrom–40
°
Cto85
°
c.
bps(bitspersecond).
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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