L9500A
High-Voltage Ringing SLIC for VoIP Applications
Preliminary Data Sheet
September 2001
Table of Contents
Contents
Page
L9500A Introduction ..................................................................................................................................................1
Features ..................................................................................................................................................................1
Applications.............................................................................................................................................................1
Description ..............................................................................................................................................................1
Features ....................................................................................................................................................................4
Description.................................................................................................................................................................4
Architecture Diagram.................................................................................................................................................6
Pin Information ..........................................................................................................................................................7
Operating States........................................................................................................................................................9
State Definitions ......................................................................................................................................................10
Forward Active ......................................................................................................................................................10
Reverse Active ......................................................................................................................................................10
Scan ......................................................................................................................................................................10
On-Hook Transmission鈥擣orward Battery ............................................................................................................10
On-Hook Transmission鈥擱everse Battery ............................................................................................................10
Disconnect ............................................................................................................................................................10
Ring.......................................................................................................................................................................10
Ground Start .........................................................................................................................................................10
Thermal Shutdown ................................................................................................................................................10
Absolute Maximum Ratings (@ T
A
= 25 擄C) ............................................................................................................11
Electrical Characteristics .........................................................................................................................................12
Test Configurations .................................................................................................................................................19
Applications .............................................................................................................................................................21
Power Control .......................................................................................................................................................21
dc Loop Current Limit............................................................................................................................................22
Overhead Voltage .................................................................................................................................................22
Active Mode .......................................................................................................................................................22
Scan Mode .........................................................................................................................................................22
On-Hook Transmission Mode.............................................................................................................................22
Ring Mode ..........................................................................................................................................................22
Loop Range ..........................................................................................................................................................22
Battery Reversal Rate ...........................................................................................................................................23
Supervision ...........................................................................................................................................................23
Loop Closure.........................................................................................................................................................23
Ring Trip ...............................................................................................................................................................23
Ground Start .........................................................................................................................................................23
Power Ring ...........................................................................................................................................................24
Sine Wave Input Signal and Sine Wave Power Ring Signal Output ..................................................................24
ac Applications ........................................................................................................................................................25
ac Parameters.......................................................................................................................................................25
Design Examples ..................................................................................................................................................26
First-Generation Codec ac Interface Network鈥擱esistive Termination..............................................................26
Broadcom
3352 Interface Network........................................................................................................ .............26
Outline Diagrams.....................................................................................................................................................28
28-Pin PLCC .........................................................................................................................................................28
48-Pin MLCC ........................................................................................................................................................29
48-Pin MLCC, JEDEC MO-220 VKKD-2...............................................................................................................30
Ordering Information ...............................................................................................................................................31
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Agere Systems Inc.
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