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New Vertical Deflection Output Amplifier Completes National Semiconductor's CRT-Deflection Package.


SANTA CLARA Santa Clara, city, Cuba
Santa Clara (sän`tä klä`rä), city (1994 est. pop. 217,000), capital of Villa Clara prov., central Cuba.
, Calif.--(BUSINESS WIRE)--July 28, 1997--National Semiconductor Corporation today announced availability of the LMV LMV League of Women Voters
LMV Lettuce Mosaic Virus
LMV Los Medicos Voladores (Spanish: The Flying Doctors)
LMV Light Motor Vehicle
LMV Low Mass Vehicle
LMV Liquid Metering Valve
8172, a vertical deflection The vertical deflections (deflections of the plumb line, astro-geodetic deflections) are important parameters of the local gravity field. They are widely used in geodesy, for surveying networks and for geophysical purposes.

The vertical deflection (abbrev.
 output amplifier for cathode ray tubes See CRT.

(hardware) cathode ray tube - (CRT) An electrical device for displaying images by exciting phosphor dots with a scanned electron beam. CRTs are found in computer VDUs and monitors, televisions and oscilloscopes.
 (CRTs).

With differential voltage input and single-ended output, the device is designed to complement the company's LM1290/96 and LM1292/95 CRT (1) (C RunTime) See runtime library.

(2) (Cathode Ray Tube) A vacuum tube used as a display screen in a computer monitor or TV. The viewing end of the tube is coated with phosphors, which emit light when struck by electrons.
 deflection chip sets, which allow the use of separate horizontal time base and geometric correction.

The LMV8172 amplifies a sawtooth waveform to drive the vertical deflection yoke of a CRT. The LMV8172 is designed to minimize power dissipation during forward scanning. In addition, an integrated flyback The term “flyback” may refer to
  • a flyback chronograph - Single push button clock for stopping, resetting and restarting time measurement.
  • a flyback converter - DC to DC converter with galvanic isolation. Used to convert between voltages efficiently.
 generator speeds up vertical retrace time.

"This topology has been widely adopted for use in both CRT monitors and TVs," observed H.K. Chiu, National senior technical marketing engineer. "It's easily the most reliable low-cost solution to vertical deflection output IC design, and fully compatible with the vast majority of CRT deflection designs currently in use," he added.

The chip set features a peak flyback pulse voltage rating of 60V and a high sawtooth current of 3.2A p-p maximum.

Price and Availability

The LMV8172T is offered in a 7-pin TO-220 package. In 1000-unit lots, the part is priced at $0.75.

For more information on the LMV8172, visit our website at http://www.national.com/pf/LM/LMV8172.html .

National Semiconductor Corporation, a Fortune 500 company, produces system on a chip silicon solutions for the information highway, based on its leadership in analog and mixed signal technologies. National is headquartered in Santa Clara, California Santa Clara, California (IPA: /ˌsæntəˈklærə/) , founded in 1777 and incorporated in 1852, is a city in Santa Clara County, in the U.S. state of California. , and focuses on the communications, personal systems and consumer markets. National has annual sales of approximately $2 billion and 12,500 employees worldwide. Additional company and product information is available on the World Wide Web at www.national.com .

CONTACT: National Semiconductor

Gerry Ziegler, 408/721-4319

gerry.ziegler@nsc.com

http://www.national.com/pf/LM/LMV8172.html
COPYRIGHT 1997 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1997, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Jul 28, 1997
Words:306
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