
LTC491
6
491fa
Figure 5. Driver Propagation Delays
Figure 6. Driver Enable and Disable Times
Figure 7. Receiver Propagation Delays
Figure 8. Receiver Enable and Disable Times
SWITCHI G TI E WAVEFOR S
UW
W
–VO
LTC491 F05
D
3V
0V
1.5V
tPLH
1.5V
VDIFF = V(Y) – V(Z)
VO
80%
20%
50%
10%
Z
Y
tSKEW
tr
f = 1MHz : tr ≤ 10ns : tf ≤ 10ns
90%
50%
tPHL
tf
VO
tSKEW
1/2 VO
LTC491 F06
A, B
DE
3V
0V
f = 1MHz : tr ≤ 10ns : tr ≤ 10ns
VOL
VOH
1.5V
5V
OUTPUT NORMALLY LOW
tZL
2.3V
tLZ
0.5V
A, B
0V
tZH
2.3V
OUTPUT NORMALLY HIGH
tHZ
0.5V
VOL
LTC491 F07
A-B
VOD2
0V
tPLH
0V
OUTPUT
VOH
1.5V
f = 1MHz ; tr ≤ 10ns : tf ≤ 10ns
tPHL
–VOD2
1.5V
INPUT
R
LTC491 F08
R
REB
3V
0V
f = 1MHz : tr ≤ 10ns : tf ≤ 10ns
VOL
VOH
1.5V
5V
OUTPUT NORMALLY LOW
tZL
1.5V
tLZ
0.5V
R
0V
tZH
1.5V
OUTPUT NORMALLY HIGH
tHZ
0.5V