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參數(shù)資料
| 型號(hào)： | L3092 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Subscriber Line Interface(用于短波/超短波通信系統(tǒng)的用戶線接口) |
| 中文描述： | 用戶線接口（用于短波/超短波通信系統(tǒng)的用戶線接口） |
| 文件頁數(shù)： | 14/32頁 |
| 文件大?。?/td> | 412K |
| 代理商： | L3092 |
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EXTERNAL COMPONENT LIST FOR THE L3000N
Component
Involved Parameter or Function
Ref
RH
RP
CDVB
CVB+
CVB-
DS
Value
22.5K
±
2%
30 to 100
47
μ
F - 20V
±
20%
0.1
μ
F - 100V
±
20%
0.1
μ
F - 100V
±
20% (note 1)
BAT49X (note 2)
Bias Resistor
Lines Series Resistor
Battery Voltage Rejection
Positive Battery Filter
Negative Battery Filter
Protective Shottky Diode
EXTERNAL COMPONENT LIST FOR THE L3092
CVSS
CVDD
CAC
ZAC
CCOMP
0.1
μ
F - 15V
0.1
μ
F - 15V
47
μ
F - 10V
±
20%
25 x (ZML - 2xRP)
Negative Supply VoltageFilter
Positive Supply Voltage Filter
AC PathDecoupling
2 WireAC Impedance
AC Loop Compensation
RPC
RDC
RL
ZA
ZB
25 x (2xRP)
2 x (RFS - RP)
63.4K
±
1
%
K x Z
ML
(note 3)
R
P
Insertion Loss Compensation
DC FeedingResistor (RDC > 200
)
Bias Resistor
SLIC ImpedanceBalancing Network
Line Impedance Balancing Network
CINT
RT
RR
RS
CS
see Table 2 (note 5)
47K
47K
1.5M
(note6)
47nF
Ring Trip Detection Time Constant
Resistors used only in the automatic stand-by mode.
To be used only if high common mode rejectionin Aut.SBY
mode and in Power Down mode is requested (note 7)
To be used only if Power on reset requested. The capacitor
value depends on V
DD
rise time.
CMR
100nF
Notes:
1) In case linecards with less than 7 subscribers are implemented CVB-capacitor should be equal to 680nF/N where N is the number of
subscriber per card.
2) This shottky diode or equivalent is necessary to avoid damage to the device duringhot insertion or in all those cases when a proper power
up sequence cannotbe guaranteed. In case the Shottky diodeis not implemented the power sequenceshould guarantee that VB+ is always
the last supplyapplied at poweron and the first removedat power off.
In case an other shottky diode type is adopted it must fulfillthe following characteristics:
V
F
< 450mV@ I
F
= n
15mA, T
amb
= 25
°
C
V
F
< 350mV@ I
F
= n
15mA, T
amb
= 50
°
C (T
jL3000
=90
°
C)
V
< 245mV@ I
= n
15mA, T
= 85
°
C (T
=120
°
C)
Where n is the number of line sharing the same diode.
3) The structure ofthis network shall copy the SLIC output impedance multiplexed by a factor K = 10 to 25. This networkmust be removed
when 2/4 wire conversion is implemented with 2nd generation COMBO (EG.TS5070).
4) The structure of this network shall copy the line impedance, Zline, multiplexed by a factor K =10 to 25 and compensate the effectof CCOMP
on transhybrid rejection.This network must be removed when 2/4 wireconversion is implemented with2nd generation COMBO(EG. TS5070).
5) The CINT value depends on the ringing frequency F
R
.
6) Value related toVb = 48V application, for application with differentbattery voltagesshould be properly dimensioned (see Fig.4).
7) Ex.: For line leakage resistance to GND equal to 500K
, the common mode rejection is 5V
P
without CS and about10Vp with CS -
Fr (Hz)
CINT (nF)
16/18
680
19/21
580
22/27
470
28/32
390
33/38
330
39/46
270
47/55
220
56/68
180
The CINT value can be optimized experimentally
for each application choosing the lower value that
in correspondanceof the lower ringing frequency,
the minimum line lenght and the higher number of
ringers doesn’tproduce false off-hook detection.
1
2
Π
f
o
(
50 R
P
)
with f
o
= 200KHz
(
K
x
Zline
)
(
Kx CCOMP
) (
note 4
)
Table 2
L3000N - L3092
14/32
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L3092FN | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECOND GENERATION COMBOS |
| L3092FNT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| L3092N | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SLIC KIT OPTIMIZED FOR APPLICATIONS WITH BOTH FIRST AND SECOND GENERATION COMBOS |
| L3092NT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
| L3092TFN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm Interface， Other/Special/Misc |
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