BTK1A Datasheet, PDF (10/18 Pages) Agere Systems – Dual Differential Transceivers BTK1A and BTM1A

Dual Differential Transceivers
BTK1A and BTM1A
Data Sheet
October 2001
Output Characteristics
Temperature Characteristics
Figure 9 illustrates typical driver output characteristics.
0
Included are load lines for two typical termination
configurations.
–0.5
VOH MAX
OUTPUT VOLTAGE (V)
VCC – 2 V
VCC – 1 V
VOH
VCC
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)
–1.0
–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 Versus
Temperature for 100 Ω Load
1.2
VOH – VOL TYP
1.0
0.8
VOH – VOL MIN
0.6
0.4
DO
200 Ω
100 Ω
DO
200 Ω
C. π Load
12-2271.a(F)
Figure 9. Driver Output Current Versus Voltage
Characteristics
0
–50 –25
0 25 50 75 100
TEMPERATURE (°C)
125 150
12-3468(F)
Figure 11. Differential Voltage (VOH – VOL) for
Drivers Versus Temperature
10
Agere Systems Inc.