LA7853 Sanyo Semiconductor Corporation, LA7853 Datasheet

LA7853

Manufacturer Part Number

LA7853

Description

CTR display synchronization deflection circuit

Manufacturer

Sanyo Semiconductor Corporation

Datasheet

1.LA7853.pdf (4 pages)

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Overview

The LA7853 is a sync deflection circuit IC dedicated to

CRT display use. It can be connected to the LA7832, 7833,

7837, 7838 (for vertical output use) to form a sync deflec-

tion circuit that meets every requirement for CRT display

use.

So far, ICs for color TV use have been applied to the sync

deflection circuit for CRT display use and general-purpose

ICs such as one-shot multivibrator, inverter and a lot of

transistors have been used to form the peripherals such as

sync input interface, horizontal phase shifter. The LA7853

contains these peripherals on chip and adopts a stable cir-

cuit for horizontal oscillation from 15kHz to 100kHz aim-

ing at improving the characteristics requierd for CRT

dispaly use.

The LA7853 has independent GND pins for the horizontal

block and vertical block, thus facilitating pattern layout for

applications where the LA7853 is used at high frequen-

cies.

Features

• The vertical pull-in range is approximately 20Hz, 2 times

• The horizontal oscillation frequency can be adjusted sta-

• The horizontal display can be shifted right/left.

• The horizontal/vertical sync input can be used intact re-

• The AFC feedback sawtooth wave can be obtained by

• Any duty of the horizontal pulse can be set.

• Good vertical linearity because DC bias at vertical output

• Excellent interlace and vertical jitter characteristics on

Ordering number:ENN2873

that of the LA7852, at f

bly from 15kHz to 100kHz.

gardless of the difference in pulse polarity and pulse width.

simply applying a flyback pulse to the IC as a trigger

pulse.

stage is subject to sampling control within retrace time.

the high-definition display because of independent GND

pins for the horizontal block and vertical block.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

SANYO Electric Co.,Ltd. Semiconductor Company

=60Hz.

Package Dimensions

unit:mm

3059-DIP22S

CRT Display Synchronization

0.95

0.48

21.2

Deflection Circuit

O2500TN (KT)/8088YT, TS No.2873–1/4

[LA7853]

1.78

1.7

Monolithic Linear IC

SANYO : DIP22S

LA7853

Related parts for LA7853

LA7853 Summary of contents

Page 1

... Ordering number:ENN2873 Overview The LA7853 is a sync deflection circuit IC dedicated to CRT display use. It can be connected to the LA7832, 7833, 7837, 7838 (for vertical output use) to form a sync deflec- tion circuit that meets every requirement for CRT display use. So far, ICs for color TV use have been applied to the sync ...

Page 2

... LA7853 [Vertical Block] • Vertical OSC • Vertical sawtooth wave generator • Sampling type DC voltage control 65˚ ± Ta=–10 to +60˚ – ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ – 2 – – ...

Page 3

... Equivalent Circuit Block Diagram LA7853 No.2873–3/4 ...

Page 4

... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of October, 2000. Specifications and information herein are subject to change without notice. LA7853 PS No.2873–4/4 ...

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