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參數(shù)資料
| 型號： | L3030 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Subscriber Line Interface(用戶線路接口設(shè)備) |
| 中文描述： | 用戶線接口（用戶線路接口設(shè)備） |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 374K |
| 代理商： | L3030 |
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EXTERNAL COMPONENT LIST FOR THE LINE INTERFACE
Pin
Component
Involved Parameter or Function
Ref.
Value
L3000N
10
1,15
7
3
8
8
RREF
RP
CDVB
CVB+
CVB–
D1
24.9k
±
1%
30 to 100
47
μ
F – 20V
0.1
μ
F – 100V (1)
0.1
μ
F – 100V (2)
BAT 49X
Bias Resistance
Line Series Resistor
Battery Voltage Rejection
Positive Battery Filter
Negative Battery Filter
Protective Shottky Diode
L3030 (PLCC44)
4-3
5-3
7-8
15-17
7-15
CVSS
CVDD
RR
RDC
0.1
μ
F – 15V
0.1
μ
F – 15V
Negative Supply Voltage Filter
Positive Supply Voltage Filter
Capacitor Multiplier Gain (8)
DC Feeding Resistor (RDC > 270
)
AC Path decoupling
16K
(range: 10 to 50K
)
2 x (RFS – RP1)
1
6.28
x250
x
(
ZAC
+
RDC
)
CAC1
ZML – (RP1 + RP2)
1/(6.28 x 150000 x (RPC))
RP1 + RP2
24.9K
1%
K x Zline (note 4)
K x RPC in Series with
K x ZAC // (CCOMP/K)
(note 6)
0.15
μ
F (note 7)
Z
TTX
= 1k
1% in speech band
Z
TTX
≈
0
at TTX freq. (note 9)
10k
1%
CAC1 (3)
14-15
8-9
8-9
9-14
2-3
36-3
36-41
CAC2
ZAC
CCOMP
RPC
RREF
ZB
ZL
2 Wire AC impedance
AC loop compensation
Rp insertion loss compensation
Bias Resistance
Line Impedance Balancing Network
SLIC Impedance Balancing Network (note 5)
32-3
15-16
35
CINT
Ccon
TTx FILT.
Ring trip detection time constant
Interface Time Constant
Teletax filter.
34
R
GTTX
Teletax filter.
Notes :
1. In case line cards 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 to damage to the device during hot insertion or in all those
cases when a proper power up sequence cannot be guaranteed.
In case the shottky diode is not implemented the power sequence should guarantee that VB+ is always the last
supply applied at power on and the first removed at power off.
In case an other shottky diode type is adopted it must fulfill the 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. If the internal capacity multiplier stage is not used, pin 7 must be connected with pin 14 without mounting RR and
CAC2. In this case CAC1 = 1/(6.28 x 30 x RDC).
4. The structure of this network shall copy the line impedance, in case multiplied by a factor K = 1....10
5. K as fixed at note 4.
6. CINT can have the following values :
7. Ccon is necessary to work ”without on/off hook detection-errors” during TTX-pulses.
8. RR is used by a capacitor multiplier circuit to synthetize an higher AC/DC splitting capacitor starting from CAC1
and CAC2. Supposing CAC1 = CAC2 = CAC the synthetized capacitor value will be equalRR
+
ZML
9. If Teletax is not used the TTX FILT. can be replaced by a 1k
resistor.
ZML
CAC.
Fr. (Hz)
16/18
18/21
21/26
26/31
31/38
38/46
46/57
57/66
CINT (nF)
560
470
390
330
270
220
180
150
L3000N - L3030
16/28
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L3000S | SLIC Kit Optimized for Applications with Both First and Second Generation Combos(用于短波/超短波通信系統(tǒng)的用戶線接口) |
| L30030G-1 | Class G Fuse Blocks |
| L30030G-2 | Class G Fuse Blocks |
| L30030G-3 | CAP CER 1.5UF 50V Y5V 1812 |
| L3092 | Subscriber Line Interface(用于短波/超短波通信系統(tǒng)的用戶線接口) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L-3030 | 制造商:Farnell / Duratool 功能描述:SCREWDRIVER SET SOFT GRIP 30PC |
| L30300EC | 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN digital panel meter, extended DPM with green LEDs, universal 85 |
| L30300NF | 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN digital panel meter, extended DPM with green LEDs, universal 85 |
| L30300P | 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN digital panel meter, extended DPM with green LEDs, universal 85 |
| L30300RC | 制造商:LAUREL ELECTRONICS 功能描述:Laureate 1/8 DIN digital panel meter, extended DPM with green LEDs, universal 85 |
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