BTF1A Datasheet, PDF (10/16 Pages) Agere Systems – Dual Differential Transceiver BTF1A With Idle Bus Indicator

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