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LTC1485_15 Datasheet, PDF (6/12 Pages) Linear Technology – Differential Bus Transceiver
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LTC1485
SWITCHI G TI E WAVEFOR S
3V
DI 1.5V
0V
tPLH
f = 1MHz; tr ≤ 10ns; tf ≤ 10ns
1.5V
tPHL
VO
90%
VA – VB
50%
–VO 10%
tr
90%
50%
10%
tf
B
VO
A
1/2 VO
tSKEW
1/2 VO
tSKEW
1485 F05
Figure 5. Driver Propagation Delays
3V
DE
0V
5V
A,B
VOL
VOH
A,B
0V
1.5V
f = 1MHz; tr ≤ 10ns; tf ≤ 10ns
tZL
2.3V
OUTPUT NORMALLY LOW
1.5V
tLZ
0.5V
2.3V
tZH
OUTPUT NORMALLY HIGH
0.5V
tHZ
1485 F06
Figure 6. Driver Enable and Disable Times
VOD2
VA – VB
–VOD2
VOH
RO
VOL
INPUT
f = 1MHz; tr ≤ 10ns; tf ≤ 10ns
0V
tPLH
OUTPUT
1.5V
0V
tPHL
1.5V
1485 F07
Figure 7. Receiver Propagation Delays
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