108555541 データシートの表示（PDF） - Agere -> LSI Corporation

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108555541

L9311 Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay, and GR-909 Test Access

Agere -> LSI Corporation 

L9311 Full-Feature SLIC with High Longitudinal Balance,

Ringing Relay, and GR-909 Test Access

Data Sheet

July 2001

Table of Contents

Contents

Page Contents

Page

Introduction ..................................................................1

Features ....................................................................1

SLIC .......................................................................1

Solid-State Ring Relay ...........................................1

Line Test Matrix......................................................1

Applications...............................................................1

Description ................................................................1

Features ......................................................................4

Description...................................................................4

Architecture .................................................................8

Pin Information ............................................................9

Operating States........................................................11

Input State Coding ..................................................11

State Definitions ........................................................13

Primary Control Modes ...........................................13

Powerup, Forward Battery....................................13

Powerup, Reverse Battery ...................................13

Scan .....................................................................13

Ground Start.........................................................13

Ringing .................................................................13

Disconnect—Break Before Make .........................14

Tip Amp ................................................................14

Ring Amp .............................................................14

Tip and Ring Amp.................................................14

Reset ....................................................................14

Secondary Control Mode States .............................14

Voltage: Tip to Ground .........................................14

Voltage: Ring to Ground.......................................14

Voltage: Tip to Ring..............................................14

Current: Tip to Ring—VTX ...................................14

Current: Tip to Ring—VITR ..................................15

Reference Voltage ...............................................15

TEST Off ..............................................................15

Special States .........................................................15

Thermal Shutdown ...............................................15

Battery Out of Range ...........................................15

Absolute Maximum Ratings.......................................16

Electrical Characteristics ...........................................17

Ring Trip Detector ...................................................18

Test ........................................................................19

SLIC Two-Wire Port ................................................20

Analog Pin Characteristics ......................................21

ac Feed Characteristics ..........................................22

Logic Inputs and Outputs, VDD = 5.0 V ...................23

Timing Requirements ..............................................23

Switch Characteristics.............................................24

On-State Switch I-V Characteristics........................25

Test Configurations ...................................................26

Applications .............................................................. 28

dc Characteristics................................................... 28

Power Control...................................................... 28

Power Derating.................................................... 28

Automatic Battery Switch .................................... 29

Power Control Resistor ....................................... 29

Overhead Voltage ............................................... 30

dc Loop Current Limit .......................................... 31

Loop Range......................................................... 31

Battery Feed ........................................................ 32

Battery Reversal Rate ......................................... 33

Longitudinal to Metallic Balance.......................... 33

Supervision ............................................................... 33

Loop Closure.......................................................... 33

Ring Trip ................................................................ 34

Ring Ground Detector ............................................ 34

Switching Behavior................................................. 34

Make-Before-Break Operation ............................... 34

Break-Before-Make Operation ............................... 35

Protection ................................................................. 35

External Protection................................................. 35

Active Mode Response at PT/PR........................... 36

Ring Mode Response at PT/PR ............................. 37

Internal Tertiary Protection..................................... 37

Diode Bridge........................................................ 37

Battery Out of Range Detector: High

(Magnitude) ................................................. 37

Battery Out of Range Detector: Low

(Magnitude) ................................................. 37

Special Functions ..................................................... 38

Line Test ................................................................ 38

ac Applications ......................................................... 40

ac Parameters........................................................ 40

Codec Types .......................................................... 40

ac Interface Network .............................................. 41

Design Tools .......................................................... 42

First-Generation Codec ac Interface Network........ 42

First-Generation Codec ac Interface

Network: Resistive Termination ................... 42

Example 1, Real Termination .............................. 43

Third-Generation Codec ac Interface

Network: Complex Termination ................... 46

Outline Diagram........................................................ 48

44-Pin PLCC .......................................................... 48

Ordering Information................................................. 49

2

Agere Systems Inc.

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