SP486 データシートの表示（PDF） - Signal Processing Technologies
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SP486 Datasheet PDF : 7 Pages
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3V
DI
0V
F = 1MHZ: tr < 10ns: tf < 10ns
1.5V
1.5V
tPLH
tPHL
B
A VO
12VO tSKEW
12VO tSKEW
VO
–VO
VDIFF = V(A) – V(B)
90%
90%
10%
10%
tr
tf
Figure 4. Driver Propagation Delays
AC PARAMETERS
VCC = 5V±5%; typicals at 25°C; 0°C ≤ TA ≤ +70°C unless otherwise noted.
PARAMETER
MIN. TYP. MAX.
PROPAGATION DELAY
Driver Input to Output
Low to High (tPLH)
20
High to Low (tPHL)
20
Driver Output to Output (tSKEW)
Driver Rise Time (tR)
SP486
SP487
Driver Fall Time (tF)
SP486
SP487
DRIVER ENABLE
To Output High
40
60
40
60
5
15
20
20
20
20
60
110
To Output Low
60
115
DRIVER DISABLE
From Output Low
From Output High
60
130
60
130
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CONDITIONS
RDIFF = 54 Ohms, CL1= CL2=
100pF; Figure 2
10% to 90%
90% to 10%
CL = 100pF; Figures 3 and 5
(S2 closed)
CL = 100pF; Figures 3 and 5
(S1 closed)
CL = 15pF; Figures 3 and 5
(S1 closed)
CL = 15pF; Figures 3 and 5
(S2 closed)
SP486/487
Quad RS-485/RS-422 Line Drivers
5
© Copyright 2000 Sipex Corporation
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