10
LTC1482
SWITCHI G TI E WAVEFOR S
UW
W
DI/SHDN
3V
1.5V
tPLH
tDSKEW
tr
tSKEW
NOTE: DE = 1
1/2 VO
VO
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
90%
50%
10%
0V
B
A
VO
–VO
90%
1.5V
tPHL
tSKEW
10%
tf
VO = V(A) – V(B)
1482 F06
Figure 6. Driver Propagation Delays
Figure 9. Receiver Enable and Shutdown Timing
Figure 8. Receiver Propagation Delays
1.5V
2.3V
tZH(SHDN), tZH
NOTE: DI = 0 FOR tZL(SHDN), tLZ(SHDN); DI = DE FOR tZH(SHDN), tHZ(SHDN); DI = DE FOR tZL, tLZ; DI = VCC FOR tZH, tHZ
tZL(SHDN), tZL
1.5V
0.5V
tHZ, tHZ(SHDN)
tLZ, tLZ(SHDN)
OUTPUT NORMALLY LOW
500
PULL-UP TO VCC
OUTPUT NORMALLY HIGH,
500
PULL-DOWN TO GND
3V
0V
DE
5V
VOL
VOH
0V
A, B
1482 F07
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
Figure 7. Driver Enable and Disable Timing
1.5V
tZH(SHDN)
NOTE: DE = 0, RO IS THREE-STATED IN SHUTDOWN, 1k
PULL-UP FOR NORMALLY LOW OUTPUT,
1k
PULL-DOWN FOR NORMALLY HIGH OUTPUT
tZL(SHDN)
1.5V
0.5V
tHZ(SHDN)
tLZ(SHDN)
OUTPUT
DI
5V
3V
0V
5V
0V
RO
1482 F09
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns
0V
tPHL
A – B
VOL
RO
1.5V
NOTE: tSKD = |tPHL – tPLH|, DE = VCC
1.5V
0V
tPLH
INPUT
OUTPUT
5V
–VOD2
VOD2
1482 F08
f = 1MHz, tr ≤ 10ns, tf ≤ 10ns