Datasheet

MAX13448E
±80V Fault-Protected Full-Duplex
RS-485 Transceiver
10 ______________________________________________________________________________________
B
A
RO
V
OH
t
RPLH
t
RPHL
V
ID
C
L
20pF
0
A
RO
B
V
OH
+ V
OL
2
V
OL
t
SKEW
= |t
RPLH
- t
RPHL
|
R
Figure 6. Receiver Propagation Delays
S1 OPEN
S2 CLOSED
S3 = +1.5V
RO
V
CC
0
0
V
OH
V
OH
/2
S1 OPEN
S2 CLOSED
S3 = +1.5V
V
CC
0
0
V
OH
0.25V
V
CC
/2
S1 CLOSED
S2 OPEN
S3 = -1.5V
V
CC
0
V
OL
V
CC
V
CC
/2
S1 CLOSED
S2 OPEN
S3 = -1.5V
V
CC
0
V
OL
V
CC
*DE =
LOW
0.25V
GENERATOR
V
CC
+1.5V
1kΩ
C
L
20pF
S2
S1
50Ω
S3
A
B
-1.5V
R
V
ID
RE
RO
RE
RO
RE
RO
RE
t
RZH
, t
RWAKE
*
t
RLZ
, t
SHDN
*
t
RZL
, t
SHDN
*
t
RHZ
, t
SHDN
*
(V
OL
+ V
CC
)/2
V
CC
/2
R
RO
RE
Figure 7. Receiver Enable and Disable Times