參數(shù)資料
型號(hào)： AN6175K
廠商： PANASONIC CORP
元件分類： 通信及網(wǎng)絡(luò)
英文描述： LJT 29C 29#16 SKT WALL RECP
中文描述： SPECIALTY TELECOM CIRCUIT, PDIP42
封裝： 0.600 INCH, SHRINK, PLASTIC, DIP-42
文件頁(yè)數(shù)： 8/21頁(yè)
文件大?。?/td> 210K
代理商： AN6175K
8
ICs for Telephone
AN6175K
38
37
39
V
CC
1
V
CC
1
V
L
R34
C38
V
CC
2
TRB
TRE
MIC amp.
AN6175K
Z
L
=
600
Q3
R33
Higher than
standard
Lower than
standard
4.2V
3.95V
3.6V
I
L
(mA)
V
L
(
12
0
0
20
120
R34=33
R34=27
10.6V
R34=20
11.8V
8.7V
1.Setting
(1) Setting the Line Path
1—1 Setting the DC Characteristics
The AN6175K can be made compatible with local telephone regulations by setting the following characteristics :
1. Gradient of the I
L
—V
L
characteristics
2. Degree of shifting of the I
L
—V
L
characteristics
How to set the above characteristics is described below.
1. Setting the gradient of the I
L
-V
L
characteristics
Referring to Fig.1—1, the resistance of R34 is 27
(standard)as with the current application board.
If R34's resistance is decreased, the gradient decreases.
If R34's resistance is increased, the gradient increases.
Also see Fig.1—2.
As shown in Fig.1—2, the resistance of R34 determines the gradient of the I
L
—V
L
characteristics. R34 also affects the gain of
the line output. Also see 1—2, Setting the AC Characteristics.
Fig.1—1 Line Output Block Diagram
Fig.1—2 I
L
—V
L
Characteristics
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