L9310 View Datasheet(PDF) - Agere -> LSI Corporation

Part Name

Description

MFG CO.

L9310

Line Interface and Line Access Circuit Full-Feature SLIC, Ringing Relay, and Test Access Device

Agere -> LSI Corporation 

L9310 Line Interface and Line Access Circuit

Full-Feature SLIC, Ringing Relay, and Test Access Device

Data Sheet

July 2001

Table of Contents

Contents

Page Contents

Page

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

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

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

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

Line Test Marix.......................................................1

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

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

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

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

Architecture .................................................................9

Pin Information ..........................................................10

Operating States........................................................14

Input State Coding ..................................................14

State Definitions ........................................................16

Primary Control Modes ...........................................16

Powerup, Forward Battery....................................16

Powerup, Reverse Battery ...................................16

Scan .....................................................................16

Ground Start.........................................................16

Ringing .................................................................17

Disconnect—Break Before Make .........................17

Tip Amp ................................................................17

Ring Amp .............................................................17

Tip and Ring Amp.................................................17

Reset ....................................................................17

Secondary Control Mode States .............................17

Voltage: Tip to Ground .........................................17

Voltage: Ring to Ground.......................................17

Voltage: Tip to Ring..............................................17

Current: Tip to Ring—VTX ...................................18

Current: Tip to Ring—VITR ..................................18

Reference Voltage ...............................................18

PPM On................................................................18

PPM Off/TEST Off................................................18

Special States .........................................................18

Thermal Shutdown ...............................................18

Battery Out of Range ...........................................19

Absolute Maximum Ratings ......................................19

Electrical Characteristics ...........................................20

Ring Trip Detector ...................................................21

PPM ........................................................................21

Test ........................................................................22

SLIC Two-Wire Port ................................................23

Analog Pin Characteristics ......................................25

ac Feed Characteristics ..........................................26

Logic Inputs and Outputs, VDD = 5.0 V ...................27

Timing Requirements ..............................................27

Switch Characteristics.............................................28

On-State Switch I-V Characteristics........................29

Test Configurations ...................................................30

Applications ...............................................................32

dc Characteristics ...................................................32

Power Control.......................................................32

Power Derating.....................................................32

Automatic Battery Switch .....................................33

Power Control Resistor ....................................... 34

dc Loop Current Limit .......................................... 34

Overhead Voltage ............................................... 35

Loop Range......................................................... 36

Battery Feed ........................................................ 36

Battery Reversal Rate ......................................... 37

Longitudinal to Metallic Balance.......................... 37

Supervision ............................................................... 37

Loop Closure.......................................................... 37

Ring Trip ............................................................... 38

Tip or Ring Ground Detector.................................. 38

Switching Behavior................................................. 38

Make-Before-Break Operation ............................... 38

Break-Before-Make Operation ............................... 39

Protection ................................................................. 39

External Protection................................................. 39

Active Mode Response at PT/PR........................... 40

Ring Mode Response at PT/PR ............................. 41

Internal Tertiary Protection..................................... 41

Diode Bridge........................................................ 41

Battery Out of Range Detector: High

(Magnitude) ................................................. 41

Battery Out of Range Detector: Low

(Magnitude) ................................................. 41

Special Functions ..................................................... 42

Periodic Pulse Metering (PPM) .............................. 42

Line Test ................................................................ 42

ac Applications ......................................................... 44

ac Parameters........................................................ 44

Codec Types .......................................................... 44

ac Interface Network .............................................. 44

Design Tools .......................................................... 45

First-Generation Codec ac Interface Network........ 45

First-Generation Codec ac Interface

Network: Resistive Termination ................... 46

Example 1, Real Termination .............................. 47

Hybrid Balance....................................................... 47

First-Generation Codec ac Interface

Network: Complex Termination ................... 50

Complex Termination Impedance Design .......... 50

ac Interface Using First-Generation Codec ......... 50

Set ZTG—Gain Shaping ....................................... 50

Transmit Gain ...................................................... 51

Receive Gain....................................................... 52

Hybrid Balance .................................................... 52

Blocking Capacitors............................................. 53

Basic Loop Start Application Using T7504

Type Codec ................................................. 54

Third-Generation Codec ac Interface

Network: Complex Termination ................... 57

Outline Diagram........................................................ 59

44-Pin PLCC .......................................................... 59

Ordering Information................................................. 60

2

Agere Systems Inc.

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