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V
IB
V
ID
V
IA
V
O
C
L
10 pf
V
OH
V
OL
1.5 v
V
O
V
IA
V
IB
V
ID
1.4 v
1 v
0.4 v
0 v
–0.4 v
t
PHL
t
PLH
t
r
t
f
20%
80%
sn65lvds386/388a/390,sn65lvdt386/388a/390
sn75lvds386/388a/390,sn75lvdt386/388a/390
SLLS394G–SEPTEMBER1999–REVISEDNOVEMBER2004
一个.allinputpulsesaresuppliedbyageneratorhavingthefollowingcharacteristics:t
r
ort
f
≤
1ns,pulserepetitionrate
(prr)=50mpps,pulsewidth=10
±
0.2ns.c
L
includesinstrumentationandfixturecapacitancewithin0,06mmof
thed.u.t.
figure2.timingtestcircuitandwaveforms
7