MAX1482 Maxim, MAX1482 Datasheet - Page 7

• Manufacturer Part Number: MAX1482
• Description: 20A / 1.8-Unit-Load / Slew-Rate-Limited RS-485 Transceivers
• Manufacturer: Maxim

Figure 5. Driver Propagation Delays
Figure 7. Receiver Propagation Delays
_______________________________________________________Switching Waveforms
RO
A-B
V
DIFF
DI
V
-V
V
V
OH
OL
-V
ID
ID
3V
0V
V
0V
Z
Y
O
O
V
1/2 V
O
0V
1.5V
t
R
10%
O
_______________________________________________________________________________________
90%
1.5V
20µA,
t
PLH
t
PHL
V
t
DIFF
SKEW =
INPUT
= V (Y) - V (Z)
| t
PLH
OUTPUT
- t
PHL
t
PLH
t
PHL
|
t
F
90%
1
⁄
1.5V
8
0V
1.5V
-Unit-Load, Slew-Rate-Limited
10%
1/2 V
O
Figure 6. Driver Enable and Disable Times
Figure 8. Receiver Enable and Disable Times
RO
RO
RE
DE
V
Y, Z
Y, Z
V
3V
0V
CC
0V
3V
0V
0V
OL
RS-485 Transceivers
1.5V
1.5V
1.5V
1.5V
2.3V
2.3V
t
t
t
t
ZL(SHDN)
ZH(SHDN)
ZL(SHDN)
ZH(SHDN)
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
, t
, t
, t
, t
ZL
ZH
ZL
ZH
t
t
t
HZ
t
HZ
LZ
LZ
1.5V
1.5V
V
V
V
V
OL
OH
OL
OH
+ 0.5V
- 0.5V
+ 0.5V
- 0.5V
7