TEA1067/C2 Philips Semiconductors (Acquired by NXP), TEA1067/C2 Datasheet - Page 17

• Manufacturer Part Number: TEA1067/C2
• Description: TEA1067; Low Voltage Versatile Telephone Transmission Circuit With Dialler Interface;; Package: SOT102-1 (DIP18), SOT163 (SO20)
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Table 1 Values of resistor R6 for optimum line loss
June 1990
handbook, full pagewidth
V
(V)
exch
Low voltage versatile telephone
transmission circuit with dialler interface
compensation, for various usual values of
exchange supply voltage (V
feeding bridge resistance (R
36
48
60
(dB)
G v
0
2
4
6
0
400
100
140
X
Fig.13 Variation of gain with line current, with R6 as a parameter.
600
78.7
110
X
20
R
R6 (k )
exch
exch
exch
800
93.1
120
( )
X
) and exchange
); R9 = 20 .
40
78.7 k
1000
82
102
110 k
X
60
140 k
17
80
R6 =
R9 = 20
100
120
I line (mA)
MSA507
140
Product specification
TEA1067