參數(shù)資料
型號(hào)： L3234
廠商： 意法半導(dǎo)體
英文描述： CAP CER 1.5UF 50V 20% X7R 1812
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
文件頁數(shù)： 11/26頁
文件大?。?/td> 457K
代理商： L3234
DESCRIPTION
Circuit description
The L3235 Subscriber Line Interface Circuit
(SLIC) is a bipolar integrated circuit in 60V tech-
nologyoptimized for PABX application.
The L3235 supplies a line feed voltage with a cur-
rent limitation which can be modified by an exter-
nal resistor(RLIM).
The SLIC incorporates loop currents, ground key
detectionfunctions with an externallyprogramma-
ble constant time.
The two to four wires and four to two wires voice
frequency signal conversion is performed by the
L3235 and the line terminating and the balancing
impedancesare externallyprogrammable.
The device integrates an automatic power limita-
tion circuit. In short loop conditionthe extra power
is dissipated on one externaltransistor (Text).
This aproach allows to assembly the L3235 in a
low cost standardplastic PLCC28package.
The chip is protected by thermal protection at
Tj = 150
°
C.
The SLIC is able to givea powerup commandfor
Combo in off hook condition and an enable logic
for solidstate ringing injectorL3234.
The L3235 packageis 28 pin plastic PLCC.
The L3235 has been designed to operate
togheter
with
L3234
BORSHT function without any electromechanical
ringing relay (see theapplication circuit fig. 16).
performing
complete
PLCC28
L3235
Subscriber Line Interface Circuit
PINCONNECTION
ABSOLUTE MAXIMUMRATINGS
Symbol
V
BAT
V
CC
V
SS
T
j
T
stg
OPERATING RANGE
Parameter
Value
-54
5.5
-5.5
150
-55 to +150
Unit
V
V
V
°
C
°
C
Battery Voltage
Positive Supply Voltage
Negative Supply Voltage
Max. Junction Temperature
Storage Temperature
Symbol
V
BAT
V
CC
V
SS
T
op
Parameter
Min.
-52
4.75
-5.25
0
-40
Max.
-24
5.25
-4.75
70
85
130
Unit
V
V
V
°
C
°
C
°
C
Battery Voltage
Positive Supply Voltage
Negative Supply Voltage
Operating Temperature for
L3235
L3235T
T
j
Max Junction Operating Temperature
Note:
Operating ranges definethose limitsbetween which the functionality ofthe device is guaranteed.
L3234 - L3235
11/26
相關(guān)PDF資料
PDF描述
L3235N HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS
L3235 CAP CER 1.5UF 100V 10% X7R 1812
L34024 Optoelectronic
L34035 Optoelectronic
L34040 Optoelectronic
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L3234B 功能描述:電信集成電路 SLIC PABX & Key Sys RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
L3234T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Ringer
L3235 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS
L3235-D2 功能描述:射頻無線雜項(xiàng) SLIC PABX & Key Sys RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel
L3235-D2/TR 功能描述:電信集成電路 SLIC PABX & Key Sys RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray
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