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| 型號： | ATTL7554BP |
| 英文描述： | L7554 Low-Power SLIC |
| 中文描述： | L7554低功耗用戶接口 |
| 文件頁數(shù)： | 15/28頁 |
| 文件大?。?/td> | 486K |
| 代理商： | ATTL7554BP |
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Lucent Technologies Inc.
15
Data Sheet
March 1997
L7554 Low-Power SLIC
Applications
(continued)
Table 10. Parts List for Loop Start and Ground Start Applications
Name
Value
Function
Integrated Circuits
SLIC
Protector
Ringing Relay
Codec
Overvoltage Protection
R
PT
R
PR
Power Supply
C
BAT1
C
CC
C
F1
C
F2
dc Profile
R
PROG
ac Characteristics
C
B2
C
GB
R
T1
R
RCV
R
GP
L7554
250 V Thyristor type
L7581
T7513
Subscriber loop interface circuit (SLIC).
Secondary protection.
Switches ringing signals.
First-generation codec.
20
, Fusible
20
, Fusible
Protection resistor.
Protection resistor.
0.1
μ
F, 20%, 100 V
0.1
μ
F, 20%, 10 V
0.47
μ
F, 20%, 100 V
0.1
μ
F, 20%, 100 V
V
BAT
filter capacitor.
V
CC
filter.
With C
F2
, improves idle channel noise.
With C
F1
, improves idle channel noise.
66.8 k
, 1%, 1/4 W
Sets dc loop current limit.
0.1
μ
F, 20%, 100 V
330
μ
F, 20%, 10 V
86.6 k
, 1%, 1/4 W
48.7 k
, 1%, 1/4 W
20.0 k
, 1%, 1/4 W
ac/dc separation capacitor.
Loop stability.
With R
GP
and R
RCV
, sets ac termination impedance.
With R
GP
and R
T1
, sets receive gain.
With R
T1
and R
RCV
, sets ac termination impedance
and receive gain.
Loop stability.
With R
X
, sets transmit gain in codec.
With R
T2
, sets transmit gain in codec.
Sets hybrid balance.
C
GP
R
T2
R
X
R
HB1
Supervision
R
LCTH
R
TS1
R
TS2
330 pF, 10 V, 20%
18.7 k
, 1%, 1/4 W
28.0 k
, 1%, 1/4 W
28.0 k
, 1%, 1/4 W
24.9 k
, 1%, 1/4 W
402
, 5%, 2 W
274 k
, 5%, 1/4 W
Sets loop closure (off-hook) threshold.
Ringing source series resistor.
With C
RTS2
, forms first pole of a double pole,
2 Hz ring trip sense filter.
With R
TSN
, R
TSP
, forms second 2 Hz filter pole.
With R
TS2
, forms first 2 Hz filter pole.
With C
RTS1
, R
TSP
, forms second 2 Hz filter pole.
With C
RTS1
, R
TSN
, forms second 2 Hz filter pole.
C
RTS1
C
RTS2
R
TSN
R
TSP
Ground Start
C
ICM
R
GDET
R
ICM2
0.022
μ
F, 20%, 5 V
0.27
μ
F, 20%, 100 V
2 M
, 5%, 1/4 W
2 M
, 5%, 1/4 W
0.47
μ
F, 20%, 10 V
100 k
, 20%, 1/4 W
82.5 k
, 1%, 1/4 W
Provides 60 Hz filtering for ring ground detection.
Digital output pull-up resistor.
Sets ring ground detection threshold.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ATTL7554BP-TR | L7554 Low-Power SLIC |
| ATTL7554P-TR | L7554 Low-Power SLIC |
| ATTL7554AP | LH1263 E&M Signaling Circuit |
| AU01Z | Fast-Recovery Rectifier Diodes |
| AU02Z | Fast-Recovery Rectifier Diodes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATTL7554BP-TR | 制造商:AGERE 制造商全稱:AGERE 功能描述:L7554 Low-Power SLIC |
| ATTL7554P-TR | 制造商:AGERE 制造商全稱:AGERE 功能描述:L7554 Low-Power SLIC |
| ATTL7556AAU | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LH1263 E&M Signaling Circuit |
| ATTL7556AAU-TR | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLICs with Battery Switch |
| ATTL7557AAU | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Power SLICs with Battery Switch |
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