ad51-069-0reel Analog Devices, Inc., ad51-069-0reel Datasheet - Page 10

• Manufacturer Part Number: ad51-069-0reel
• Description: Half-duplex Icoupler-r Isolated Rs-485 Transceiver
• Manufacturer: Analog Devices, Inc.

ADM2483
SWITCHING CHARACTERISTICS
V
A – B
V
A, B
V
RxD
DD1
0V
OH
OL
B
A
VO
10% POINT
1/2VO
Figure 9. Driver Propagation Delay, Rise/Fall Timing
90% POINT
t
PLH
0V
Figure 10. Receiver Propagation Delay
0.5V
t
R
DD1
1.5V
t
PLH
t
t
SKEW
SKEW
= |
= |
t
t
PLH
PLH
–
–
t
t
0.5V
PHL
PHL
|
|
DD1
t
0V
PHL
t
PHL
1.5V
90% POINT
t
F
10% POINT
V
V
OH
OL
Rev. B | Page 10 of 20
A, B
A, B
RxD
RxD
DE
RE
0V
0.5V
t
t
ZL
ZH
0.5V
t
t
ZL
ZH
DD1
Figure 12. Receiver Enable/Disable Timing
DD1
Figure 11. Driver Enable/Disable Timing
2.3V
2.3V
1.5V
1.5V
O/P HIGH
O/P LOW
t
t
HZ
LZ
0.5V
t
DD1
t
V
V
HZ
0.5V
LZ
OL
OH
+ 0.5V
– 0.5V
DD1
V
V
OL
OH
+ 0.5V
– 0.5V
0.7V
0.3V
0.7V
0.3V
DD1
DD1
DD1
DD1
V
V
0V
V
V
OL
OH
OL
OH