TS634 datasheet(8/9 Pages) STMICROELECTRONICS

No. de pieza	TS634

Descripción Electrónicos	DUAL WIDE BAND OPERATIONAL AMPLIFIER FOR ADSL LINE INTERFACE

PDF	9 Pages

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Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

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TS634

8/9

CAPABILITIES

The table below shows the calculated compo-

nents

for different values of k. In this case

R2=1000

Ω and the gain=16dB. The last column

displays the maximum amplitude level on the line

regarding the TS634 maximum output capabilities

(18Vpp diff.) and a 1:2 line transformer ratio.

MEASUREMENT OF THE POWER

CONSUMPTION

Conditions:

Power Supply: 12V

Passive impedance matching

Transformer turns ratio: 2

Maximun level required on the line: 12.4Vpp

Maximum output level of the driver: 12.4Vpp

Crest factor: 5.3 (Vp/Vrms)

The TS634 power consumption during emission

on 900 and 4550 meter twisted pair telephone

lines: 450mW

Active matching

(

Ω)

(

Ω)

(

Ω)

TS634 Output

Level to get

12.4Vpp on

the line

(Vpp diff)

Maximum

Line level

(Vpp diff)

1.3

820

1500

3.9

27.5

1.4

490

1600

5.1

8.7

25.7

1.5

360

2200

6.2

9.3

25.3

1.6

270

2400

7.5

9.9

23.7

1.7

240

3300

9.1

10.5

22.3

Passive matching

12.4

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