- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367406 > L3235N HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS PDF資料下載
參數(shù)資料
| 型號(hào)： | L3235N |
| 英文描述： | HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS |
| 中文描述： | 高度集成的用戶接口盒針對(duì)交換機(jī)與關(guān)鍵系統(tǒng)應(yīng)用 |
| 文件頁(yè)數(shù)： | 5/25頁(yè) |
| 文件大小： | 3164K |
| 代理商： | L3235N |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)當(dāng)前第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)
5
7
RO1
RO2
OUT1
2
OUT2
CS
CO1
CO2
CS
LINE FEEDER
L3235N
GND
-VBAT
TIP
RING
LINE TERMINALS
A
B
VA
RINGING INJECTOR
L3234
6
4
3
1
CA
VA
C100
CVCC
VCC
GND
V100
+5V
GND
+100V
D94TL-L3235N
Figure 1:
L3234/L3235N Circuit Configuration
When the ringing function is selected by the sub-
scriber card, a low level signal is continuously ap-
plied to pin 1 through a de coupling capacitor. Then
the logical ring drive signal CS provided by L3235N
is applied to pin 2 with a cadenced mode.
The ringing cycles are synchronised by the L3234
in such a way that the ringing starts and stops al-
ways when the analog input signal crosses zero.
When the ringing injection is enabled (CS = "1"),
an AC ringing signal is injected in a balanced
mode into the telephone line.
When the ringing injection is disabled (CS = "0"),
the output voltage on OUT2 raises to the high
power supply, whereas on OUT1, it falls down to
ground.
The L3234 has a low output impedance when
sending the signal, and high output impedance
when the ringing signal is disabled
In fig. 2 the dynamic features of L3234 are
shown.
OPERATION DESCRIPTION
The Fig. 1 show the simplified circuit configuration
of the L3234 Solid State Ringing injector when
used with the L3235N Line Feeder.
EXTERNAL COMPONENTS LIST
In the following table are shown the recommended external components values for L3234.
Ref.
Value
82
Involved Parameter or Function
R01, R02
C01, C02
CA
C100
CV
CC
Ringing Feeding Series Resistors
Ringing Feeding De coupling Capacitors
Low Level Ringing Signal De coupling Capacitor
Positive Battery Filter
+5V Supply Filter
10
μ
F - 160V
4.7
μ
F - 10V
100nF - 100V
100nF
L3234 - L3235N
5/25
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L3235 | CAP CER 1.5UF 100V 10% X7R 1812 |
| L34024 | Optoelectronic |
| L34035 | Optoelectronic |
| L34040 | Optoelectronic |
| L34 | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L3235N-TR | 制造商:STMicroelectronics 功能描述:SLIC 49DB 77MA 5V/100V 44TQFP - Tape and Reel |
| L3235T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Subscriber Line Interface Circuit |
| L323C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:THYRISTOR MODULE|BRIDGE|HALF-CNTLD|CA|280V V(RRM)|15A I(T) |
| L323ED | 制造商:Kingbright Corporation 功能描述:LED Uni-Color Orange 625nm 2-Pin |
| L323F | 制造商:CRYDOM 制造商全稱:Crydom Inc., 功能描述:Power Modules |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。