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參數(shù)資料
| 型號： | PBL386212 |
| 廠商： | ERICSSON |
| 英文描述： | Subscriber Line Interface Circuit |
| 中文描述： | 用戶線接口電路 |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 130K |
| 代理商： | PBL386212 |
PBL 386 21/2
9
SLIC Operating States
State
C3
C2
C1
SLIC operating state
Active detector
0
1
2
3
4
5
6
7
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
Open circuit
Ringing state
Active state
Not applicable
Not applicable
Active state
Active reverse
Active reverse
-
Ring trip detector (active low)
Loop detector (active low)
-
-
Ground key detector (active high)
Loop detector (active low)
Ground key detector (active high)
Table 1. SLIC operating states.
15
16
17
18
C3
C2
C1
DET
C1, C2 and C3 are digital inputs (internal pull-up) controlling the SLIC operating states.
Refer to section "Operating states" for details.
Det
ector output. Active low when indicating loop detection and ring trip, active high when indicating
ground key detection.
N
o internal
C
onnection.
+5 V power supply.
P
rogrammable
L
oop
D
etector threshold. The loop detection threshold is programmed by a resistor
connected from this pin to AGND.
P
rogrammable
O
verhead
V
oltage. If pin is left open: The overhead voltage is internally set to min 1.0 V in
off-and on-hook. If a resistor is connected between this pin and AGND: the overhead voltage can be set
to higher values.
P
rog.
L
ine
C
urrent, the constant current part of the DC feed characteristic is programmed by a resistor
connected from this pin to AGND.
A
Ref
erence, 49.9 k
, resistor should be connected from this pin to AGND.
N
o internal
C
onnection.
R
eceive
S
umming
N
ode. 200 times the AC-current flowing into this pin equals the metallic (transversal)
AC-current flowing from RINGX to TIPX. Programming networks for two-wire impedance and receive gain
connect to the receive summing node. A resistor should be connected from this pin to AGND.
Analog Ground, should be tied together with BGND.
Transmit vf output. The AC voltage difference between TIPX and RINGX, the AC metallic voltage, is
reproduced as an unbalanced GND referenced signal at VTX with a gain of one (or one half, see pin
PTG). The two-wire impedance programming network connects between VTX and RSN.
19
20
21
NC
VCC
PLD
22
POV
23
PLC
24
25
26
REF
NC
RSN
27
28
AGND
VTX
}
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PBL38621-2 | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386212QNA | 制造商:Rochester Electronics LLC 功能描述: 制造商:Infineon Technologies AG 功能描述: |
| PBL386212QNAXT | 制造商:Infineon Technologies AG 功能描述:SLIC 1-CH 75dB 30mA 5V 24-Pin SSOP T/R 制造商:Lantiq 功能描述:SLIC 1-CH 75dB 30mA 5V 24-Pin SSOP T/R |
| PBL386212QNS | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386212QNSNE | 制造商:Infineon Technologies AG 功能描述:POTS |
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