Datasheet

ADM2482E/ADM2487E
Rev. A | Page 13 of 20
SWITCHING CHARACTERISTICS
07379-010
Z
Y
V
DD1
/2V
DD1
/2
t
DPHL
t
DPLH
1/2V
O
V
O
90% POINT
10% POINT 10% POINT
90% POINT
V
DIFF
= V
(Y)
– V
(Z)
t
DR
t
DF
–V
O
V
DIFF
+V
O
0V
V
DD1
t
DSKEW
= | t
DPLH
– t
DPHL
|
Figure 26. Driver Propagation Delay, Rise/Fall Timing
A
–B
RxD
0V 0V
1.5V 1.5V
07379-011
V
OH
V
OL
t
PLH
t
PHL
t
SKEW
= | t
PLH
– t
PHL
|
Figure 27. Receiver Propagation Delay
DE
Y
, Z
Y
, Z
V
DD1
0V
0V
V
OL
V
OH
0.5V
DD1
0.5V
DD1
t
ZL
t
LZ
t
ZH
t
HZ
V
OL
+ 0.5V
V
OH
– 0.5V
2.3V
2.3V
07379-012
Figure 28. Driver Enable/Disable Timing
OUTPUT LOW
OUTPUT HIGH
1.5V
1.5V
RxD
RxD
RE
0V
07379-013
0.7V
DD1
0.3V
DD1
V
OL
V
OH
0.5V
DD1
0.5V
DD1
t
ZL
t
LZ
t
ZH
t
HZ
V
OL
+ 0.5V
V
OH
– 0.5V
Figure 29. Receiver Enable/Disable Timing