Datasheet > LM1296

LM1296

更新时间： 2024-09-22 22:51:59

品牌	Logo	应用领域
美国国家半导体 - NSC		显示器栅
页数	文件大小	规格书
10页	239K
描述
Raster Geometry Correction System for Multi-Frequency Displays

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LM1296 数据手册

February 1998

LM1296

Raster Geometry Correction System for Multi-Frequency

Displays

n Accepts either polarity of V sync

n DC-controlled correction terms

The LM1296 is a monolithic IC for use in the raster scanning

n Raster vertical position control

General Description

circuitry of a multi-frequency CRT monitor. The IC provides

an S-corrected sawtooth waveform and a variable DC output

voltage. These two outputs drive the vertical deflection am-

n Vertical S-correction (linearity) control

n East-West pincushion control

n East-West trapezoid control

n East-West corner control

n Provides both polarities of correction output

n East-West correction tracks raster vertical position and

height

plifier. It also provides another waveform for East-West ge-

ometry correction which includes pincushion, corner, and

trapezoid controls. The geometry correction is controlled by

DC input voltages from 0V to 4V.

The raster height and the raster vertical position can be con-

trolled by two DC voltage input pins that adjust the sawtooth

waveform amplitude and the variable DC output voltage. The

East-West correction of the LM1296 has height tracking and

vertical position tracking capabilities. As the height or posi-

tion of the raster is adjusted the geometry correction is main-

tained by the chip automatically.

n Compatible with LM1290 and LM1292 horizontal PLL

Applications

n Vertical deflection of monitors

The LM1296 is packaged in a 16-pin plastic DIP package.

Features

n Vertical scanning frequency 50 Hz–165 Hz

Connection Diagram

DS012894-1

FIGURE 1.

Order Number LM1296N

See NS Package Number N16A

DS012894

www.national.com

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