SP486E 查看數據表（PDF） - Signal Processing Technologies
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SP486E Datasheet PDF : 11 Pages
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3V
DI
0V
F = 1MHZ: tr < 10ns: tf < 10ns
1.5V
1.5V
tPLH
tPHL
B
A
VO
21VO
VO
–VO
Figure 4. Driver Propagation Delays
21VO
VDIFF = V(A) – V(B)
90%
90%
10%
10%
tr
tf
AC PARAMETERS
VCC = 5V±5%; typicals at 25°C; TAMB = 25°C unless otherwise noted.
PARAMETER
MIN. TYP.
PROPAGATION DELAY
Driver Input to Output
Low to High (tPLH)
High to Low (tPHL)
Differential Skew (tSKEW)
Driver Rise Time (tR)
SP486E
SP487E
Driver Fall Time (tF)
SP486E
SP487E
DRIVER ENABLE
To Output High
20
40
20
40
5
20
20
20
20
60
To Output Low
60
MAX.
60
60
15
110
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
tSKEW = tPLH - tPHL
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)
SP486E/487EDS/06
SP486E/487E Enhanced Quad RS-485/RS-422 Line Drivers
5
© Copyright 2000 Sipex Corporation
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