Dual Differential Transceiver BTF1A
With Idle Bus Indicator
Data Sheet
March 2001
Output Characteristics
Temperature Characteristics
Figure 9 illustrates typical driver output characteristics.
Included are load lines for two typical termination con-
figurations.
0
–0.5
VOH MAX
OUTPUT VOLTAGE (V)
–1.0
–1.5
VCC – 2 V
VCC – 1 V
VCC
VOH
VOH MIN
10
20
30
40
VOL MAX
–2.0
–2.5
Y LOAD
VOL MIN
VOL
–50
–25
0
25
50
75
100
125 150
TEMPERATURE (°C)
π LOAD
2-3467(F)
Figure 10. VOL and VOH Extremes for Drivers vs.
Temperature for 100 Ω Load
12-2269(F)
A. Output Current vs. Output Voltage for Loads
Shown in B and C
1.2
60 Ω
60 Ω
VOH – VOL TYP
DO
DO
1.0
90 Ω
0.8
VOH – VOL MIN
12-2270(F)
0.6
B. Y Load
0.4
0
100 Ω
DO
200 Ω
DO
200 Ω
–50
–25
0
25
50
75
100
125 150
TEMPERATURE (°C)
12-3468(F)
12-2271.a(F)
Figure 11. Differential Voltage (VOH – VOL) for
Drivers vs. Temperature
C. π Load
Figure 9. Driver Output Current vs. Voltage
Characteristics
10
Agere Systems Inc.
AGERE [ AGERE SYSTEMS ]
