ADM483E
TEST CIRCUITS AND SWITCHING CHARACTERISTICS
Y
V
CC
R
L
V
OD
V
OC
06012-015
S1
0V OR 5V
D
C
L
R
L
= 500Ω
OUT
R
L
Z
GENERATOR
50Ω
Figure 15. Driver DC Test Load
5V
DE
C
L
A
DI
B
V
OD
R
L
C
L
5V
DE
V
CC
/2
0V
t
DZL(SHDN)
V
CC
OUT
V
OL
06012-016
t
DZL,
t
DLZ
0.5V
06012-019
06012-021
2.3V
Figure 19. Driver Enable and Disable Times (t
DZL
, t
DLZ
, t
DZL(SHDN)
)
B
ATE
V
ID
A
R
RECEIVER
OUTPUT
06012-020
Figure 16. Driver Timing Test Circuit
5V
DI
0V
1.5V
t
DPLH
t
DPHL
1/2 V
O
A
Figure 20. Receiver Propagation Delay Test Circuit
+1V
–1V
B
A
V
O
1/2V
O
V
DIFF
+V
O
0V
–V
O
10%
V
DIFF
= V (A) – V (B)
90%
90%
10%
06012-017
B
t
RPLH
t
RPHL
RO
V
OH
1.5V
V
OL
THE RISE TIME AND FALL TIME OF INPUT A AND INPUT B < 4ns
t
DR
t
SKEW
=
t
DPLH
– t
DPHL
t
DF
Figure 21. Receiver Propagation Delays
Figure 17. Driver Propagation Delays
S1
0 OR 5V
D
C
L
OUT
R
L
= 500Ω
GENERATOR
50Ω
5V
DE
1.5V
0V
0.5V
06012-018
t
DZH(SHDN)
OUT
t
DZH,
2.3V
V
OH
t
DHZ
0V
Figure 18. Driver Enable and Disable Times (t
DHZ
, t
DZH
, t
DZH(SHDN)
)
Rev. A | Page 9 of 16
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