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Part Name
Description
LTC1535(1999) View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1535
(Rev.:1999)
Isolated RS485 Transceiver
Linear Technology
LTC1535 Datasheet PDF : 12 Pages
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LTC1535
UW
W
SWITCHI G TI E WAVEFOR S
3V
DI
0V
Z
Y
V
O
0V
– V
O
1.5V
t
r
≤
10ns, t
f
≤
10ns
1.5V
t
PLH
t
PHL
V
O
20%
80%
V
DIFF
= V(Y) – V(Z)
80%
20%
t
r
t
SJ
t
f
t
SJ
1535 F05
Figure 5. Driver Propagation Delays
3V
DE
0V
5V
Y, Z
V
OL
V
OH
Y, Z
0V
1.5V
t
r
≤
10ns, t
f
≤
10ns
1.5V
t
ZL
t
LZ
2.3V
OUTPUT NORMALLY LOW
0.5V
2.3V
OUTPUT NORMALLY HIGH
0.5V
t
ZH
t
HZ
t
SJ
t
SJ
1535 F06
Figure 6. Driver Enable and Disable Times
V
OH
RO
V
OL
V
OD2
A–B
– V
OD2
t
SJ
1.5V
t
PHL
0V
t
SJ
OUTPUT
t
r
≤
10ns, t
f
≤
10ns
1.5V
t
PLH
INPUT
0V
1535 F07
Figure 7. Receiver Propagation Delays
3V
RE
0V
5V
RO
RO
0V
6
1.5V
t
r
≤
10ns, t
f
≤
10ns
1.5V
t
ZL
t
LZ
1.5V
OUTPUT NORMALLY LOW
0.5V
t
SJ
t
SJ
1.5V
OUTPUT NORMALLY HIGH
0.5V
t
ZH
t
HZ
1535 F08
t
SJ
t
SJ
Figure 8. Receiver Enable and Disable Times
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