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參數(shù)資料
| 型號： | L3234T |
| 英文描述： | Telephone Ringer |
| 中文描述： | 電話鈴聲 |
| 文件頁數(shù)： | 12/26頁 |
| 文件大?。?/td> | 457K |
| 代理商： | L3234T |
THERMAL DATA
Symbol
R
th j-amb
Description
Value
80
Unit
°
C/W
Thermal Resistance Junction-ambient
Max
PIN DESCRIPTION
Pin
1
2
3
4
5
6
7
8
9
10
Name
V
bat
RING
ZAC
VREG
AGND
BGND
CAC
RPC
TX
ZB
Description
Negative Battery Supply Input.
RING wire of 2 Wire Line Interface.
Non Inverting Input of the AC Impedance Synthesis Circuit.
Emitter Connection for the External Transistor.
Analog/Digital Ground.
Battery Ground. This is the Reference for the Battery Voltage (note 1).
AC Current Feedback Input.
External Protection Resistors AC Transmission Compensation.
Four Wire Transmitting Amplifier Output.
Non Inverting OperationalInput Inserted in the Hybrid Circuit for 2W to 4W
Conversion. The Network Connected from this Pinto Ground shall be a copy
of the Line Impedance.
VRX Output Buffer 2W to 4W Conversion.
High Impedance Four Wire Receiving Input.
Positive 5V Supply Voltage.
Voltage Reference Output; a Resistor Connected to this pin sets the Internal
Bias Current.
Negative 5V Supply Voltage.
Transversal Line Current Feedback Divided by 50.
Non Inverting OperationalInput to Implement DC Character.
Driver for External Transistor Base.
Voltage Reference Output; a Resistor Connected to this Pin Sets the Value of
Line Current Limitation.
Ringing Logic Input from Line Card Controller.
Stand by Logic Input (SBY = 1 Set Line Current Limitation at 3mA).
Power u.p Logic Output for the Codec Filter. (PU = 0 means CodecFilter
Activated)
Ring Injector Enable for L3234 Output. (CS= 1means L3234 Ringing
Injection Enable).
Hook Status Logic Output (OH = 0 means off hook).
Ground Key Status Logic Output (GDK = 0 means Ground Key on).
Time Constant Hook Detector Filter Input.
Time Constant GK Detector Filter Input.
Tip Wire of 2 Wire Line Interface.
11
12
13
14
ZA
RX
V
CC
REF
15
16
17
18
19
V
SS
IL
VPOL
BASE
LIM
20
21
22
RNG
SBY
PU
23
CS
24
25
26
27
28
OH
GDK
RTF
GKF
TIP
Note 1:
AGND and BGND pins must be tied together at a low impedance point (e.g. at card connector level).
L3234 - L3235
12/26
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L3235T | Subscriber Line Interface Circuit |
| L3234 | CAP CER 1.5UF 50V 20% X7R 1812 |
| L3235N | HIGHLY INTEGRATED SLIC KIT TARGETED TO PABX AND KEY SYSTEM APPLICATIONS |
| L3235 | CAP CER 1.5UF 100V 10% X7R 1812 |
| L34024 | Optoelectronic |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 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 |
| L3235N | 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 |
| L3235N-TR | 制造商:STMicroelectronics 功能描述:SLIC 49DB 77MA 5V/100V 44TQFP - Tape and Reel |
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