THS6032 Datasheet, PDF (12/31 Pages) Texas Instruments – LOW-POWER ADSL CENTRAL-OFFICE LINE DRIVER

THS6032
LOW-POWER ADSL CENTRAL-OFFICE LINE DRIVER
SLOS233C – APRIL1999 – REVISED MARCH 2000
APPLICATION INFORMATION
ADSL
The THS6032 was primarily designed as a low-power line driver for ADSL (asymmetrical digital subscriber line).
The driver output stage has been sized to provide full ADSL power levels of 20 dBm onto the telephone lines.
Although actual driver output peak voltages and currents vary with each particular ADSL application, the
THS6032 is specified for a minimum full output current of 400 mA at its full output voltage of approximately 11 V.
This performance meets the demanding needs of ADSL at the central office end of the telephone line. A typical
ADSL schematic is shown in Figure 36.
VCC(H)15 V
0.1
µF
THS6032
Driver 1
0.1 µF
+
6.8 µF
VI+
+
_
680 Ω
0.1 µF
200 Ω
–VCC(H) –15 V
VCC(L) 6 V
THS6032
Driver 2
0.1
µF
VI–
+
_
0.1 µF
6.8 µF
+
+
6.8 µF
680 Ω
0.1 µF
–VCC(L) –6 V
Driver
6.8 µF
+
12.5 Ω
12.5 Ω
1:2
Telephone Line
100 Ω
2 kΩ
1 kΩ
1 kΩ
15 V
0.1 µF
–
+
THS6072
VO+
2 kΩ
1 kΩ
1 kΩ
–
+ _THS6072
VO–
0.1 µF
Figure 36. THS6032 ADSL Application
–15 V
Receiver
12
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