Datasheet

Data Sheet ADM4168E
Rev. 0 | Page 9 of 12
TEST CIRCUITS AND SWITCHING CHARACTERISTICS
DRIVER MEASUREMENTS
Y
Z
DI
V
OD2
V
OC
R
L
2
R
L
2
10820-019
Figure 11. Driver Voltage Measurements
Z
INPUT
Y
1.3V 1.3V
1.3V
1.3V
1.3V
50%
50%
50%
50%
1.3V
t
DPLH
t
DPLH
t
SK
t
SK
t
DPHL
t
DPHL
90% POINT90% POINT
10% POINT 10% POINT
t
DR
t
DF
–V
O
V
OD
+V
O
V
OL
V
OH
V
OL
V
OH
0V
5V
NOTES
1. INPUT PULSE GENERATOR: PPR 1MHz; 50% DUTY CYCLE;
t
R
, t
F
≤ 6ns.
10820-020
Figure 12. Driver Propagation Delay and Rise/Fall Timing
Y
Z
DI
Y
1.5V
Z
DE
S1
R
3
V
OD
R
1
R
2
C
1
C
2
C
3
NOTES
1. C
1
, C
2
, C
3
INCLUDE PROBE/INSTRUMENT CAPACITANCE.
10820-021
Figure 13. Driver Timing Circuit
DE
OUT
OUT
5V
0V
1.5V
1.5V
V OL
V
OH
1.3V
1.3V
t
ZL
t
LZ
t
ZH
t
HZ
2V
NOTES
1. INPUT PULSE GENERATOR: PPR 1MHz; 50% DUTY CYCLE;
t
R
, t
F
≤ 6ns.
V
OH
– 0.3V
V
OL
+ 0.3V
10820-022
0.8V
Figure 14. Driver Enable/Disable Timing
RECEIVER MEASUREMENTS
RO
0V 0V
50%
10% 10%
90% 90%
50%
V
OH
V
OL
2.5V
–2.5V
t
RPLH
t
TLH
t
THL
t
RPHL
NOTES
1. INPUT PULSE GENERATOR: PPR 1MHz; 50% DUTY CYCLE;
t
R
, t
F
≤ 6ns.
B
(A = 0V)
10820-024
Figure 15. Receiver Propagation Delay and Transition Timing
C
L
V
O
A
B
NOTES
1. C
L
INCLUDES PROBE/INSTRUMENT CAPACITANCE.
10820-023
Figure 16. Receiver Timing Circuit