參數(shù)資料
型號: L7556
廠商: Lineage Power
英文描述: Low-Power SLICs (electronic subscriber loop interface circuits )with Battery Switch(帶電池開關(guān)的低功耗用戶環(huán)路接口電路(SLIC))
中文描述: 低功耗SLIC組件(電子用戶環(huán)路接口電路)與電池開關(guān)(帶電池開關(guān)的低功耗用戶環(huán)路接口電路電路(SLIC))
文件頁數(shù): 14/28頁
文件大?。?/td> 753K
代理商: L7556
14
Lucent Technologies Inc.
Data Sheet
January 2000
with Battery Switch
L7556, L7557 Low-Power SLICs
Applications
12-2573.Y(F)
Notes:
Tx = 0 dB.
Rx = 0 dB.
Termination = 600
.
Transhybrid = 600
.
Figure 11. Basic Loop Start Application Circuit Using T7504 Type Codec
12-3547(F)
Figure 12. Ring Ground Detection Circuit
R
PROG
66.8 k
R
LCTH
24.9 k
L7581
RELAY
PT
V
BAT1
C
BAT1
0.1
F
V
BAT1
V
BAT2
C
BAT2
0.1
F
C
CC
0.1
μ
F
V
CC
V
CC
RCVN
DCOUT
LCTH
PR
RTSP
R
TS1
402
C
0.27
μ
F
RTSN
R
TS2
274 k
R
TSN
2.0 M
V
RING
V
BAT
CF2
12
CF1
13
C
F1
0.47
μ
F
AGND
19
BGND
21
I
PROG
VITR
RCVP
R
T1
54.9 k
R
RCV
84.5 k
R
18.7 k
R
HB1
90.9 k
VF
X
IN
R
X
90.9 k
GSX
PWROP
DX
DR
FSX
FSEP
MCLK
1/4 T7504
CODEC
CONTROL
INPUT
PCM
HIGHWAY
SYNC
AND
CLOCK
+
L7556/L7557
SLIC
B1
B0
BS
CONTROL
INPUTS
SUPERVISION
OUTPUTS
C
0.022
μ
F
R
2.0 M
C
F2
0.1
μ
F
AGND
BGND L
BAT
C
B1
0.47
μ
F
14
R
57.6 k
C
330 pF
10
1
4
5
19
21
6
VF
X
IP
ASEL
7
NLC
NRDET
27
17
4
26
25
18
AGND
2
V
CC
9
8
V
CC
C
CC
0.1
μ
F
22
11
24
23
5
TIP
R
PT
50
RING
R
PR
50
CROWBAR
PROTECTOR
CROWBAR
PROTECTOR
C
B2
0.47
μ
F
D
BAT
V
CC
0.47
μ
F
C
ICM
GROUND START
APPLICATION CIRCUIT
R
GDET
ICM
R
GDET
100 k
R
ICM2
154 k
R
GDET
相關(guān)PDF資料
PDF描述
L7557 Low-Power SLICs (electronic subscriber loop interface circuits )with Battery Switch(帶電池開關(guān)的低功耗用戶環(huán)路線接口電路(SLIC))
L7581 Ringing Access Switch(振鈴存取開關(guān))
L7582 Ring Access Switch(振鈴存取開關(guān))
L7583B Line Card Access Switch(線卡存取開關(guān))
L7583C Line Card Access Switch(線卡存取開關(guān))
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