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參數(shù)資料
| 型號(hào)： | PBL386302 |
| 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(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 134K |
| 代理商： | PBL386302 |
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PBL 386 30/2
9
SLIC Operating States
State
C2
C1
SLIC operating state
Active detector
0
1
2
3
0
0
1
1
0
1
0
1
Open circuit
Ringing state
Active state
Not applicable
-
Ring trip detector (active low)
Loop detector (active low)
-
Table 1. SLIC operating states.
15
16
17
18
19
20
21
NU
C2
C1
DET
NC
VCC
PLD
Pin
N
ot
U
sed. Must be connected to AGND.
C1 and C2 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.
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 2.7 V in
off-hook and min 1.1 V in 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 current limit, reference C in figure 12, 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.
22
POV
23
PLC
24
25
26
REF
NC
RSN
27
28
AGND
VTX
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PBL38630-2 | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386302QNANT | 制造商:Infineon Technologies AG 功能描述:SLIC 1-CH 66dB 45mA 5V 28-Pin PLCC T/R |
| PBL386302QNS | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386302QNT | 制造商:ERICSSON 制造商全稱:Ericsson 功能描述:Subscriber Line Interface Circuit |
| PBL386302QNTNT | 制造商:Infineon Technologies AG 功能描述:POTS |
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