Datasheet

7
LTC1686/LTC1687
SWITCHI G TI E WAVEFOR S
UW W
Figure 5. Driver Propagation Delays
D
3V
1.5V
t
PLH
t
r
t
SKEW
1/2 V
O
90%
10%
0V
Z
Y
V
O
–V
O
0V
90%
1.5V
t
PHL
t
SKEW
1/2 V
O
f = 1MHz, t
r
≤ 3ns, t
f
≤ 3ns
10%
t
f
V
DIFF
= V(Y) – V(Z)
1686/87 F05
V
O
1.5V
t
ZL
2.5V
2.5V
t
ZH
1.5V
t
LZ
0.5V
0.5V
t
HZ
f = 1MHz, t
r
≤ 3ns, t
f
≤ 3ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
DE
5V
V
OL
V
OH
0V
Y, Z
Y, Z
1686/87 F06
Figure 6. Driver Enable and Disable Times
2.5V
t
PHL
f = 1MHz, t
r
≤ 3ns, t
f
≤ 3ns
R
–V
OD2
A – B
0V
2.5V
t
PLH
OUTPUT
INPUT
V
OD2
V
OL
V
OH
1686/87 F07
Figure 7. Receiver Propagation Delays
1.5V
t
ZL
2.5V
2.5V
t
ZH
1.5V
t
LZ
0.5V
0.5V
t
HZ
f = 1MHz, t
r
≤ 3ns, t
f
≤ 3ns
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
RE
5V
0V
R
R
1686/87 F08
Figure 8. Receiver Enable and Disable Times