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E / A PENTON PUBLICATION ilig DECEMBER 1991 TECHNOLOGY PERSPECTIVES FOR GLOBAL ELECTRONICS MANAGEMENT ENVIROMENTALISM IT PAYS TO GO REM\ PAGE 42 ..... , 4..rà t , ' rye•di t - _ r irî.'_.,;.-e,,. „,e0=..._ ••‘. \ ilbe ,., ,e' '' V¡ -4.0 , ,,i. ve or ‘,.., . e . i f•,..,, 1 ' ' AL ., a. , ' • &oil l'e¡ NI • 111' ....t , :,. ,- 1. • 1.;ei.. --,73., z.4.:„À • •-1, - • - y; .. ,) t•ditt; WITH TRW 's VIDEO ENCODER, ANYONE CAN PRODUCE PROFESSIONAL VIDEOS WITHOUT HOLLYWOOD BUDGETS. AIII AV IMF PROD. NO. SCENE TAKE ROLL 3 ura---. i4 d 4-tfetVe ?ron'lo Lights. Camera. Action. and built-in test signals. The TMC22090 even The monolithic Video Encoder is gives you aJTAG interface for low cost pro- here. Created by TRW, the film and duction testing. So for everything from simply production industry's leading sup- providing an affordable video output for com- plier of high-performance ICs. And puter display boards, to the only company ever to be developing complex awarded an Emmy for its video desktop video work- 1988-1989 Emmy Award IC technology. stations, you can design Now, TRW brings you the first in its in confidence. With new line of affordable multimedia ICs for desk- the video encoder from top video: The TMC22090. the leader in video And that means converting RGB, YUV ICs: TRW. or color-indexed computer images and graph- And you can ics into studio-quality NTSC, PAL or S-Video count on TRW to keep you at the forefront signals can now be done with asingle, low-cost of multimedia, too. t This Video Encoder, after chip. One fabricated in TRW's Omicron-CTM all, is just our debut. We've got some aos.' 1µ CMOS process. Packaged in an 84 lead great ev ,„fpo sequels in development. PLCC. And, of course, designed with the full- For data sheets, applications and spec performance that is synonymous with other information on TRW's TMC22090 TRW standards. Video Encoder, as well as to be first in line The TMC22090 ,e for coming attractions, call or write today: boasts a256x8x3 cs" color lookup pe" table, a pixel TRW LSI Products Inc., \e, % P.O. Box 2472 La Jolla, CA 92038 mask register (619) 457-10001 FAX (619) 455-6314 and compatibility Ià111 imam (800) TRWLSIP (800) 879-5747 11.1r.v .......szeultpui with 171 and 176 RAMDACs. All of which means transparent interface with exis- 11113IIMIbM ting device drivers. Better still, the high performance Holly- If leg'', wood has come to rely on is provided by 4:4:4 digital encoding, oversampled 10-bit outputs, TRW LSI Products Inc. STANDARDS SET STANDARDS TOBE M ET CIRCLE 203 Good Sines & Electronics IDHOR Bad Signs Jonah McLeod .1LLNAGLNG ED/ I/ Looking for alow-noise, fast-switching signal source? Howard Wolff SENIOR EDITOR Good Sines 11APJ\ Lawrence Curran Whether it's automatic test equipment, satellite uplinks, EDDOR-A7 1-121RGE Samuel Weber EW communications or imaging systems, Programmed 914-428-3595 Test Sources has a frequency synthesizer to fit your ASSISTANT MANAGING EDITOR needs GE MAI units, Teradyne Testers, Varian Spec- Jacqueline Damian DEPARTMENT EDITORS trometers all use PTS synthesizers Communications: Jack Shandle Bad Signs $$ $ 201-393-6228 And while other manufacturers have big dollar signs, PTS System Technology: synthesizers start as low as S2 010 (San Jose) Jonah McLeod 408-441-0550 PTS manufactures a complete line of precision synthes- EDITORIAL PRODUC770N MANAGER April Messina izers covering the 100 KHz to 1 GHz frequency range with ASSOCT I11: IR/DIRECTOR switching times as fast as 1µ second for our direct digital Tony Vitolo models And plenty of other options as well, like resolution ST'A .I,"/7S7'/DESIGNER Anthony White down to .1 hertz (millihertz available as special order), GPIB and digital phase rotation III la .11S Boston.- Lawrence Curran, Manager Just as important along with every PTS synthesizer 508-441-1113 comes our absolutely everything covered" 2-year Midwest Correspondent: Francis J. Lavoie warranty. At the end of two years comes our flat 5350* Mid-Atlantic: Jack Shandle, Manager 201-393-6228 service charge for any repair up to the year 2001 1 PTS has Frankfurt: John Gosch, Manager acommitment to quality you won't find anywhere else. 011-49-61-71-53834 France Correspondent Andrew Rosenbaum Find out how PTS synthesizers used the world over can 011 -331 -4236 -1867 help you in your application today . Call for our complete Italy Couespondent: Andrew Rosenbaum 011-331-4236-1867 catalog, or to talk to an applications engineer. Japan- Shin Kusunoki, Consultant, S500.00 for PTS 1000 Nomura Research Institute 011-81-45-336-7064 Call (508) 486-3008 Fax (508) 486-4495 UK Correspondent: Peter Fletcher 011 -443-226 -64355 Electronics Index Mark Parr VICE PRESIDENT-EDITORIAL Perry Pascarella PROGRAMMED TEST SOURCES, Inc GROUP ART DIRECTOR 9Beaver Brook Road. P.O. Box 517, Littleton, MA 01460 Peter Jeziorski EDITORIAL ADMINISTRATION Bradie S. Guerrero, Tina A. Montone Director of Circulation: Bruce Sprague Manager of Circulation Bob Clark eeeekeez Production Manager Doris Carter (201) 393-6259 FAX: (201) 393-0410 Order Entn. Beverly Desbiens PL/EL/SI/FR John G. French 617-890-0891 CIRCLE 209 December 1991 Volume 64, Number 12 Electronics (ISSN 0883-4989) is published monthly by Penton Publishing, Inc., 1100 Superior Ave., Cleveland. OH 44114-2543. Second class If mailing label is not available print your old postage paid at Cleveland. OH, and additional mailing offices. company name and address in this box. Editorial and advertising addresses: Electronics, 611 Route 946 West, Hasbrouck Heights, NJ 07604. Telephone (201) 393-6060. Facsimile (201) 393-0204. San Jose, Calif.: Telephone (408) 441-0550. Circulation (1100 Superior Ave., Cleveland, OH 44114-2543): (216) 696-7000. Please allow Title registered in US Patent Office. Printed in U.S.A. Copyright 01991 by Penton Publishing, Inc. All rights reserved. The contents of this publi- 6 weeks for cation may not be reproduced in whole or in part without the consent of change to the copyright owner. Pernfission is granted to users registered with the Copyright Clearance take effect Center Inc. (CCC) to photocopy any article, with the exception of those for which separate copyright ownership is indicated on the first page of the article, for abase fee of $1 per copy of the article plus 50e per page paid 2. Print your New business address here. directly to the CCC, 27 Congress St., Salem, MA 01970. (Code No. 0883-4989/90 $1.00 -1- .50) Can. GST 89126431964. NAME TITLE Microfilm of issues or articles can be ordered from University Micro- films, Ann Arbor, Mich. 48103. Telephone: (313) 761-4700. COMPANY Subscriptions free to qualified managers. All others: $60 for one year in the U.S.; $70 in Canada; $136 in all other countries. For sub- ADDRESS scriber change of address and subscription inquiries, call 216- 696-7000. CITY STATE ZIP POSTMASTER: Please send change of address to ELECTRONICS, ['union Publishing, Inc., 1100 Superior Ave., Cleveland, OH 44114-2543. ELECTRONICS •DECENIBER 1991 2 Limited Only By Your Imagination Remember how quickly you could turn aconcept into reality with aset of quality building blocks? How you always seemed to have just the right parts and how well they fit together? How easily you could modify your creation to explore creative alternatives? Our VI-200 and VI-J00 families of high density converters, along with ahost of compatible modular peripheral products, are designed to "plug and play" perfectly... offering you the flexibility, ease-of-use, quality and repeatability needed to implement virtually any power system solution. And with hundreds of standard models to choose from...input ratings from 10 to 400 Volts, outputs from 2to 95 Volts and power expansion from Watts to kiloWatts... you won't be stuck at the last minute with "missing" parts. You're not playing with toys anymore...which may be the most important reason for specifying Vicor's component-level "building blocks" for your next power system. Component Solutions For Your Power System 23 Frontage Road Andover, MA 01810 TEL: (508) 470-2900 FAX: (508) 475-6715 CIRCLE 205 UP FRONT ENTER, STAGE LEFT: ANEW PC fthere is aquotation that suits the Comdex computer show held last month in Las Vegas, it is the fa- miliar line from Shakespeare's King Richard HI "Now is the winter of our discontent...." Nothing Icould more succinctly sum up the state of the personal computer industry today. The near-term M strategy for most companies is to simply survive the big chill, says Stacy Lund, marketing manager at Seagate Technology in Scotts Valley, CAC Companies are trying to anticipate the next hot segment and looking for relief from the cold reality of the recession. Almost all the industry suppliers are betting that the notebook and subnotebook PC is the next major wave. But Al Shugart, president, CEO, and COO of Seagate, is skeptical about this as.sessment. The rapidity with which notebooks have advanced to higher-capacity disk drives suggests to him that most notebook customers are PC owners who want aportable version of their desktop system. The question is whether there are enough of these buyers to provide sustained market growth for more than afew quarters. Just as living creatures go through metamorphosis, so too the PC business. The large installed base of computers is essentially serving alimited number of point solutions: spreadsheets, data bases, and word processing applications. Beyond the winter of its discontent, the industry belongs to anew breed of computing engine. One candidate for this new, transforming machine is the pen-based system. For the first time, it invites the user who has not been touched by the computer revolution to partake.