THS6002

DUAL DIFFERENTIAL LINE DRIVERS AND RECEIVERS

SLOS202D– JANUARY 1998– REVISED JULY 1999

34

POST OFFICE BOX 655303

APPLICATION INFORMATION

ADSL

The THS6002 was primarily designed as a line driver and line receiver 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

THS6002 is specified for a minimum full output current of 400 mA at its full output voltage of approximately 12

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 59.

_

+

6.8

µF

0.1

µF

–15 V

6.8

µF

0.1

µF

15 V

1 k

Ω

1 k

Ω

+

+

VI+

_

+

6.8

µF

0.1

µF

–15 V

6.8

µF

0.1

µF

15 V

1 k

Ω

1 k

Ω

+

+

VI–

+

–

1 k

Ω

0.1

µF

1 k

Ω

2 k

Ω

12.5

Ω

+

–

1 k

Ω

0.1

µF

1 k

Ω

2 k

Ω

1:2

To Telephone Line

12.5

Ω

–15 V

15 V

15 V

–15 V

0.01

µF

THS6002

Receiver 1

THS6002

Receiver 2

VO+

VO–

THS6002

Driver 1

THS6002

Driver 2

100

Ω

Figure 59. THS6002 ADSL Application