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參數(shù)資料
| 型號： | L8574D |
| 英文描述： | CAP 15PF 50V 5% C0G SMD-0402 TR-7-PA SN100 |
| 中文描述： | L8574D電阻用戶線接口電路（SLIC），環(huán)繼電器和保護（SRP）的為遠距離和TR - 57應(yīng)用 |
| 文件頁數(shù)： | 20/36頁 |
| 文件大?。?/td> | 489K |
| 代理商： | L8574D |
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20
Lucent Technologies Inc.
Data Sheet
October 1998
Relay, and Protector (SRP) for Long Loop and TR-57 Applications
L8574D Resistive Subscriber Line Interface Circuit (SLIC), Ring
Applications
(continued)
General
(continued)
Table 15. External Components Required
1. Power is continuous rms power.
2. R
1
/R
2
= 1, with a tolerance of 0.35% for 50 dB longitudinal balance, 0.2% for 58 dB longitudinal balance. Fuses F1 and F2 provide fail-safe
operation if excessive overvoltage conditions exist on Tip and Ring. They will not operate if the total power dissipation of the entire resistor
network is
≤
5 W at 85
°
C.
3. (R
3
+ R
6
)/(R
4
+ R
5
) = 1 with a tolerance of 0. 35% for 50 dB longitudinal balance, 0.2% for 58 dB longitudinal balance.
4. R
9
/R
1
= 100 with a tolerance of 0.5%.
Comp.
F1
F2
R
1
R
2
R
3
R
4
R
5
R
6
R
7
R
8
R
9
R
10
Function
Fuse Protector
Fuse Protector
dc Feed Protection
dc Feed Protection
Transmit Gain
Transmit Gain
Transmit Gain
Transmit Gain
Protection
Protection
Battery Noise Cancellation
Ringing
Implementation
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Resistor Module
Value
—
—
200
200
100 k
100 k
200 k
200 k
1 k
1 k
20 k
600
Attribute
1
—
—
1.0%, 2 W
2
1.0%, 2 W
2
1.0%, 25 mW
3
1.0%, 25 mW
3
1.0%, 25 mW
3
1.0%, 25 mW
3
2.0%, 0.1 W
2.0%, 0.1 W
10 mW
4
1.0%, 1.6 W
(14 W for 250 ms)
20%, 10 V
20%, 10 V
20%, 100 V
20% 100 V
1%, 1/16 W
1%, 1/16 W
1%, 1/16 W
1%, 1/16 W
20%, 100 V
C
VCC
C
VDD
C
BAT
C
LIM
R
CBN1
R
CBN2
R
CBN3
R
CBN4
C
CBN1
V
CC
Filter
V
DD
Filter
V
BAT
Filter
Current Limit
External
External
External
External
External
External
External
External
External
0.1
μ
F
0.1
μ
F
0.1
μ
F
33 nF
5.11 k
301 k
9.53 k
1 M
0.22
μ
F
Battery Noise Cancellation
Battery Noise Cancellation
Battery Noise Cancellation
Battery Noise Cancellation
Battery Noise Cancellation
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