SLLS562G – AUGUST 2009 – REVISED MAY 2009
PARAMETER MEASUREMENT INFORMATION (continued)
A
0 V or 3 V
3 V if Testing A Output
0 V if Testing B Output
D
B
C
L
= 50 pF
R
L
= 110
W
S1
Output
DE
t
PZH
Output
2.5 V
t
PHZ
1.5 V
1.5 V
0V
0.5 V
V
OH
V
Off
0
3V
DE
Signal
Generator
50
W
Figure 5. Driver Enable/Disable Test Circuit and Waveforms, High Output
5V
R
L
= 110
W
Output
DE
C
L
= 50 pF
t
PZL
Output
Signal
Generator
2.5 V
50
W
0.5 V
3V
1.5 V
1.5 V
0V
t
PLZ
5V
V
OL
A
D
0 V or 3 V
0 V if Testing A Output
3 V if Testing B Output
DE
B
S1
Figure 6. Driver Enable/Disable Test Circuit and Waveforms, Low Output
I
OS
V
ID
V
O
Voltage
Source
V
O
I
O
Figure 7. Driver Short-Circuit
Figure 8. Receiver Switching Test Circuit and
Waveforms
Signal
Generator
50
W
V
ID
A
B
R
I
O
V
O
Input B
1.5 V
Input A
t
PLH
90%
Output
t
r
t
f
10%
50%
0V
t
PHL
V
OH
V
OL
Signal
Generator
50
W
C
L
= 15 pF
Figure 9. Receiver Switching Test Circuit and Waveforms
Copyright © 2009, Texas Instruments Incorporated
7
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