LA7850 Sanyo Semiconductor Corporation, LA7850 Datasheet

LA7850

Manufacturer Part Number

LA7850

Description

CTR display synchronization deflection circuit

Manufacturer

Sanyo Semiconductor Corporation

Datasheet

1.LA7850.pdf (5 pages)

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Overview

The LA7850 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 LA7850

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 dis-

play use.

Features

• 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

On-Chip Functions

[Horizontal Block]

Ordering number:ENN1581D

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.

• AFC

• Horizontal OSC

• X-ray protector

• Horizontal phase shift

• AFC sawtooth wave generator

• Horizontal pulse duty setting

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

[Vertical Block]

• Vertical OSC

• Vertical sawtooth wave generator

• Sampling type DC voltage control

Package Dimensions

unit:mm

3021C-DIP20

(0.57)

CRT Display Synchronization

1.0

O2500TN (KT)/5238YT/4015MY/6114KI, TS No.1581–1/5

2.54

0.5

24.0

Deflection Circuit

[LA7850]

1.2

Monolithic Linear IC

SANYO : DIP20

LA7850

Related parts for LA7850

LA7850 Summary of contents

Page 1

... Ordering number:ENN1581D Overview The LA7850 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

... LA7850 65˚ =12V ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ ± Ta=–10 to +60˚ – 2 – – – ± – – – – – – – – – – ˚ ˚ Hz/˚C ...

Page 3

... Equivalent Circuit Block Diagram Sample Application Circuit : 14” Color Monitor/f LA7850 =60Hz, f =15.734kHz V H No.1581–3/5 ...

Page 4

... Sample Application Circuit : 14” Color Monitor/f LA7850 Family LA7850 =60Hz, f =15.734kHz No.1581–4/5 ...

Page 5

... 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. LA7850 PS No.1581–5/5 ...

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