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參數(shù)資料
| 型號： | 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)： | 13/32頁 |
| 文件大?。?/td> | 412K |
| 代理商： | L3092 |
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It is possible to do it because :
When the CS = + 5V the output pins (ONHK,
GDK) are in high impedancecondition (> 100K
).
The signals present at the input pins are not
transfered into the SLIC.
When the CS = 0V the output pins change in
function of the values of the line current (I
line
) and
the longitudinal current (I
GDK
). The operating
status of the SLIC are set by the voltage applied
to the input pins.
The rising edge of the CS signal latches the sig-
nal applied to the input pins. The status of the
SLIC will not change until the CS signal will be
againequal to zero.
See timings fig 7 & 8.
An additional input pin MR (Master Reset) can be
useful during the system start up phase or in
emergencycondition.
In fact when this pin is set to ”0” the SLIC will be
set in POWERDOWN MODE. This pin has an in-
ternal pull-up resistor of about 200K
EXTERNALCOMPONENTS LIST
To set up the SLIC kit into operation, the following
parameters haveto be defined:
- The DC feeding resistance RFS, defined as
the resistance of each side of the tradi-
tional feeding system (most common value
for RFS are200, 400 or500).
- The AC input/output SLIC impedance at line
terminals, ZML, to which the return loss
measurement is refered. It can be real
(typically 600
) or complex.
- The equivalent AC impedance of the line
Zline used for evaluation of the trans-hy-
brid loss (2/4 wire conversion). It is usually
a compleximpedance.
- The frequency of the ringing signal Fr (SLIC
can work with this frequency ranging from
16 to 68Hz).
- The value of the two resistors RP in series
with the line terminals ; main purpose of
the a.m. resistors is to allow primary pro-
tectionto fire..
With these assumptions the following compo-
nents list is defined :
Figure7:
Typical ApplicationCircuit
L3000N
L3000N - L3092
13/32
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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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