TS634ID STMicroelectronics, TS634ID Datasheet - Page 8

• Manufacturer Part Number: TS634ID
• Description: Dual Wide Band Operational Amplifier Adsl Line Interface
• Manufacturer: STMicroelectronics

TS634
CAPABILITIES
The table below shows the calculated compo-
nents
R2=1000
displays the maximum amplitude level on the line
regarding the TS634 maximum output capabilities
(18Vpp diff.) and a 1:2 line transformer ratio.
8/9
1.3
1.4
1.5
1.6
1.7
k
Passive matching
Active matching
820
490
360
270
240
( )
R1
for different values of k. In this case
and the gain=16dB. The last column
1500
1600
2200
2400
3300
( )
R3
( )
3.9
5.1
6.2
7.5
9.1
Rs
TS634 Output
Level to get
12.4Vpp on
(Vpp diff)
the line
10.5
12.4
8.7
9.3
9.9
8
Maximum
Line level
(Vpp diff)
27.5
25.7
25.3
23.7
22.3
18
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