Datasheet

MAX13410E–MAX13415E
RS-485 Transceiver with Integrated Low-Dropout
Regulator and AutoDirection Control
12 ______________________________________________________________________________________
Test Circuits and Waveforms (continued)
1.5V
1.5V
0
DI
B
A
t
DPLH
t
DPHL
1/2 V
O
1/2 V
O
V
O
t
DDD
, t
RED
RO
(RO PULLED LOW)
10%
90%
10%
90%
0
V
O
O
-V
O
V
DIFF
V
DIFF
= V
A
- V
B
t
HL
t
LH
f = 1MHz, t
LH
≤ 3ns, t
HL
≤ 3ns
5V
RE = V
CC
Figure 3b. Driver Propagation Delays
1.5V
1.5V
A, B
0
0
OUTPUT NORMALLY LOW
DE
OUTPUT NORMALLY HIGH
t
DZL(SHDN)
t
DZH(SHDN)
t
DLZ
t
DHZ
2.3V
2.3V
V
OL
+ 0.5V
V
OH
+ 0.5V
V
OH
A, B
V
OL
V
CC
OUTPUT
UNDER TEST
5V
C
L
S
1
S
2
500Ω
Figure 4. Driver Enable and Disable Times
V
ID
A
B
R
RECEIVER
OUTPUT
ATE
Figure 5. Receiver-Propagation-Delay Test Circuit