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參數(shù)資料
| 型號(hào)： | 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(yè)數(shù)： | 15/28頁(yè) |
| 文件大小： | 374K |
| 代理商： | L3030 |
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DIGITAL INTERFACE ELECTRICAL CHARACTERISTICS
(continued)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
DYNAMIC ELECTRICAL CHARACTERISTICS
fclk
Tr, Tf
Twh, Twl
Tis
Tec
Tsc
Tsd
Thd
Tcs
Tca
Tac
Tzd
Tce
Tdz
Tdd
Tsi
Clock Frequency
Clock Rise and Fall Time
Clock Impulse Width
CI to NCS Set up Time
”0” EIA to DCKL Set up Time
DCKL to NCS Delay (+ edge)
Data in Set up Time
Data in Hold Time
NCS to DCKL Hold Time
”0” EIA to DCKL Hold Time
”1” EIA to DCKL Set up Time
Data out to ”0” NCS Delay
”1” EIA to DCKL Hold Time
Data out to ”1” NCS Delay
Data out to DCKL Delay
”0” CI to NCS Hold Time
1
600
50
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
750
300
300
300
0
800
800
900
400
0
900
600
500
1500
300
OPERATION DESCRIPTION
To set SLIC in operationthe following parameters
have to be defined:
- the DCfeedingresistanceRFS,definedasthere-
sistanceof eachside of the traditionalfeedingsy-
stem (most common values are 200, 400 or 500
ohm).
- theACimpedanceatlineterminals,ZML, towhich
thereturnloss measurementreferences.It canbe
real(typically 600ohm) or complex.
- the equivalent AC impedance of the line Zline,
when evaluating the trans hybrid loss (2/4 wire
conversion).It is usually a complex impedance.
- the ringing signal frequency Fr (ST SLIC allows
frequencyranging from 16 to 66Hz).
- the metering pulse frequency Ft (two values are
possible: 12kHzor 16kHz).
- the value of the two resistors RP1/RP2 in series
with the line terminals; main purposeof the a.m.
resistors is to allow primary protection to fire. ST
suggest the minimum value of 50 ohm for each
side.
Onthis assumptions,the followingcomponentlist is
defined.
L3000N - L3030
15/28
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 |
|---|---|
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| 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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