參數(shù)資料
型號： L7597
廠商： Lineage Power
英文描述： Resistive Subscriber Line Interface Circuit (SLIC), Ring Relay, and Protector (SRP) for Short Loop and TA-909 Applications(用于短環(huán)路和TA-909的電阻性用戶線接口、振鈴繼電器和保護器)
中文描述： 電阻用戶線接口電路（SLIC），環(huán)繼電器和保護（SRP）的短環(huán)路和TA - 909應(yīng)用（用于短環(huán)路和電訊- 909的電阻性用戶線接口，振鈴繼電器和保護器）
文件頁數(shù)： 2/34頁
文件大?。?/td> 564K
代理商： L7597
2
Lucent Technologies Inc.
Advance Data Sheet
March 1997
Relay, and Protector (SRP) for Short Loop and TA-909 Applications
L7597 Resistive Subscriber Line Interface Circuit (SLIC), Ring
Table of Contents
Contents
Page
Features ....................................................................................................................................................................1
Description ................................................................................................................................................................1
Architectural Diagram................................................................................................................................................4
Pin Information ..........................................................................................................................................................5
Absolute Maximum Ratings (@ T
A
= 25
°
C)..............................................................................................................7
Electrical Characteristics...........................................................................................................................................8
Ring Trip Detector ...................................................................................................................................................9
Battery Feed ...........................................................................................................................................................9
Fault Protection.....................................................................................................................................................10
Analog Signal Pins................................................................................................................................................11
Transmission Characteristics................................................................................................................................13
Data Interface and Logic.......................................................................................................................................14
Switch Characteristics...........................................................................................................................................15
Operating States......................................................................................................................................................16
Scan State ............................................................................................................................................................16
Disconnect State...................................................................................................................................................17
Talk/High Battery State .........................................................................................................................................17
Talk State..............................................................................................................................................................17
Scan Current-Limit State.......................................................................................................................................17
Ringing State ........................................................................................................................................................17
On-Hook Transmission State ................................................................................................................................17
Intermediate Talk State .........................................................................................................................................17
Applications.............................................................................................................................................................18
General.................................................................................................................................................................18
Resistor Module....................................................................................................................................................21
Protection..............................................................................................................................................................23
Tip/Ring Drivers....................................................................................................................................................24
Receive Interface..................................................................................................................................................24
Transmit Interface..................................................................................................................................................24
Battery Noise Cancellation ...................................................................................................................................24
On-Hook Transmission..........................................................................................................................................25
Parallel Data Interface...........................................................................................................................................25
Supervision...........................................................................................................................................................25
Off-Hook Detection ...............................................................................................................................................25
Ring Trip................................................................................................................................................................25
Thermal Shutdown................................................................................................................................................26
Relay Driver ..........................................................................................................................................................26
Solid-State Ringing Access...................................................................................................................................26
Battery Switch.......................................................................................................................................................26
dc Characteristics....................................................................................................................................................27
V-I Characteristics.................................................................................................................................................27
Loop Length..........................................................................................................................................................27
ac Design.................................................................................................................................................................27
Codec Features and Selection Summary.............................................................................................................27
Design Equations..................................................................................................................................................28
TA-909 Application Diagram....................................................................................................................................32
Outline Diagram.......................................................................................................................................................33
32-Pin PLCC.........................................................................................................................................................33
Ordering Information................................................................................................................................................34
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