MTADREF.PDF

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Low Power Telephone Answering Machine
User’s Guide
Version 1.0
ISD Part Number: ISDMicroTADRDG1-799
July 1999
ISD · 2727 North First Street, San Jose, CA 95134 · TEL: 408/943-6666 · FAX: 408/544-1787 · http://www.isd.com
Low Power Telephone Answering Machine User’s Guide
MicroTAD REFERENCE DESIGN DISTRIBUTION DISKETTE
There are 24 files on this diskette. The instructions provided on this page are also pro-
vided on the accompanying diskette in text format.
The
TADB.ZIP
file contains the following:
•
•
•
•
•
Tadb.DSN
: the complete schematic in OrCAD Ver. 7.00 format.
Tadb-bom.TXT
: the parts BOM in text format.
V22files.ZIP
: the zipped copy of the firmware listings. This includes 17 files. Verify
that you have plenty of paper as there are many pages in this file.
Tadb.OLB
: the OrCAD Ver. 7.00 format parts library.
Tadb-II.prn
: an HP LaserJet II print file that can be printed in DOS for those who
do not have OrCAD. Open a DOS window and type "copy tadb-II.prn prn" then
press the "Enter" or "Return" key.
Tadb-4L.prn
: an HP LaserJet 4L print file that can be used as described above.
TAMGuide.pdf
: the Users Guide in Adobe PDF 4.0 format.
•
•
INSTALLATION INSTRUCTIONS TO ACCESS FILES
1. Verify that your hard drive has at least 4MB of free space to hold the files on this
diskette.
2. Copy TADB.ZIP onto your hard drive in a separate folder (directory).
3. Use WINZIP to open TADB.ZIP; then again to open V22FILES.ZIP.
4. Copy the .DSN file to your OrCAD project directory and print the schematics.
5. If you do not have OrCAD Version 7.00 or higher, use the DOS command “copy
tadb-II.prn prn” (as described in previous section) to print out the schematics.
ISD Applications Department July 9, 1999
Please address all questions, via email, to
apps@isd.com
.
ISD
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Low Power Telephone Answering Machine User’s Guide
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Voice Solutions in Silicon™
Low Power Telephone Answering Machine User’s Guide

User’s Guide
Low Power Telephone Answering System
INTRODUCTION .................................................................................................................... 4
FEATURES............................................................................................................................. 5
POWER SUPPLY ................................................................................................................... 6
MENUS ................................................................................................................................... 6
PHONE ANSWERING............................................................................................................ 7
POWER MANAGEMENT ....................................................................................................... 8
CIRCUIT DESCRIPTION........................................................................................................ 9
FIRMWARE DESCRIPTION ................................................................................................ 15
SCHEMATIC DIAGRAMS.................................................................................................... 25
ISD
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