
Preliminary W91030
CALLING LINE INDENTIFIER
Publication Release Date: May 1997
- 1 - Revision A1
Table of Contents-
GENERAL DESCRIPTION..............................................................................................................................2
FEATURES AND APPLICATIONS..................................................................................................................2
Features........................................................................................................................................................2
Applications...................................................................................................................................................3
PIN CONFIGURATION....................................................................................................................................3
PIN DESCRIPTION..........................................................................................................................................4
SYSTEM DIAGRAM ........................................................................................................................................5
BLOCK DIAGRAM...........................................................................................................................................6
FUNCTIONAL DESCRIPTION ........................................................................................................................7
Ring Detector.................................................................................................................................................7
Input Pre-processor .......................................................................................................................................8
Dual Tone Alert Signal Detection....................................................................................................................8
FSK Demodulation.......................................................................................................................................10
Other Functions...........................................................................................................................................12
ELECTRICAL CHARACTERISTICS..............................................................................................................14
Absolute Maximum Ratings .........................................................................................................................14
Recommended Operating Conditions...........................................................................................................15
DC Electrical Characteristics........................................................................................................................15
Electrical Characteristics - Gain Control OP-Amplifier..................................................................................16
AC Electrical Characteristics........................................................................................................................17
AC Timing Characteristics ...........................................................................................................................18
APPLICATION INFORMATION.....................................................................................................................23
Application Circuit........................................................................................................................................23
Application Environment..............................................................................................................................24
The information described in this document is the exclusive intellectual property of Winbond Electronics Corporation and shall not
be reproduced without permission from Winbond.
Winbond provides this document for reference purposes of W-based system design only. Winbond assumes no responsibility for
errors or omissions. All data and specifications are subject to change without notice.