Dual Differential Transceiver BTF1A
With Idle Bus Indicator
Data Sheet
March 2001
Timing Characteristics (continued)
3.0 V
1.5 V
0.0 V
ED
tPHZ
tPZH
OUTPUT
VOH
VOL + 0.2 V
VOL
VOL – 0.1 V
OUTPUT – 0.4 V
VOL
VOL – 0.1 V
OUTPUT
tPLZ
tPZL
12-2268.d(F)
Note: In the third state, OUTPUT is 0.4 V more negative than OUTPUT.
Figure 4. Driver Enable and Disable Timing
INPUT
INPUT
3.7 V
3.2 V
2.7 V
tPLH
tPHL
OUTPUT
VOH
1.5 V
VOL
80%
80%
20%
ttHL
20%
ttLH
12-2251.b(F)
Figure 5. Receiver Propagation Delay Timing
8
Agere Systems Inc.