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SWITCHINGCHARACTERISTICS
PARAMETERMEASUREMENTINFORMATION
V
IB
V
ID
V
IA
V
IC
V
O
一个
B
R
V
IA
V
IB
2
sn65lvds386/388a/390,sn65lvdt386/388a/390
sn75lvds386/388a/390,sn75lvdt386/388a/390
SLLS394G–SEPTEMBER1999–REVISEDNOVEMBER2004
overrecommendedoperatingconditions(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYP
(1)
MAXUNIT
t
PLH
propagationdelaytime,低-至-高-leveloutput12.64ns
t
PHL
propagationdelaytime,高-至-低-leveloutput12.54ns
t
r
Outputsignalrisetime5008001200ps
t
f
OutputsignalfalltimeSeeFigure25008001200ps
t
sk(p)
pulseskew(|t
PHL
-t
PLH
|)150600ps
t
sk(o)
Outputskew
(2)
100400ps
t
sk(pp)
部分-至-partskew
(3)
1ns
t
PZH
propagationdelaytime,高-阻抗-至-高-leveloutput715ns
t
PZL
propagationdelaytime,高-阻抗-至-低-leveloutput715ns
SeeFigure3
t
PHZ
propagationdelaytime,高-水平的-至-高-impedanceoutput715ns
t
PLZ
propagationdelaytime,低-水平的-至-高-impedanceoutput715ns
(1)alltypicalvaluesareat25
°
candwitha3.3-vsupply.
(2)t
sk(o)
isthemagnitudeofthetimedifferencebetweenthet
PLH
ort
PHL
ofalldriversofasingledevicewithalloftheirinputsconnected
一起.
(3)t
sk(pp)
isthemagnitudeofthedifferenceinpropagationdelaytimesbetweenanyspecifiedterminalsofanytwodevicescharacterizedin
thisdatasheetwhenbothdevicesoperatewiththesamesupplyvoltage,atthesametemperature,andhavethesametestcircuits.
figure1.voltagedefinitions
table1.receiverminimumandmaximuminputthresholdtestvoltages
resultingdifferentialresultingcommon-
APPLIEDVOLTAGES
INPUTVOLTAGEMODEINPUTVOLTAGE
V
IA
V
IB
V
ID
V
IC
1.25v1.15v100mv1.2v
1.15v1.25v–100mv1.2v
2.4v2.3v100mv2.35v
2.3v2.4v–100mv2.35v
0.1v0v100mv0.05v
0v0.1v–100mv0.05v
1.5v0.9v600mv1.2v
0.9v1.5v–600mv1.2v
2.4v1.8v600mv2.1v
1.8v2.4v–600mv2.1v
0.6v0v600mv0.3v
0v0.6v–600mv0.3v
6
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