參數(shù)資料
型號: 933880320112
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: TELEPHONE SPEECH CKT, PDSO20
封裝: PLASTIC, SOT-163, SO-20
文件頁數(shù): 9/29頁
文件大?。?/td> 231K
代理商: 933880320112
June 1990
17
Philips Semiconductors
Product specication
Low voltage versatile telephone
transmission circuit with dialler interface
TEA1067
Fig.13 Variation of gain with line current, with R6 as a parameter.
handbook, full pagewidth
MSA507
6
4
2
0
Gv
(dB)
140
120
100
80
60
40
20
0
78.7 k
110 k 140 k
R9 = 20
R6 =
Iline (mA)
Table 1
Values of resistor R6 for optimum line loss
compensation, for various usual values of
exchange supply voltage (Vexch) and exchange
feeding bridge resistance (Rexch); R9 = 20 .
Rexch ()
400
600
800
1000
R6 (k
)
Vexch
36
100
78.7
X
(V)
48
140
110
93.1
82
60
X
120
102
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