Datasheet > LM1209

LM1209

更新时间： 2024-11-29 21:55:35

品牌	Logo	应用领域
美国国家半导体 - NSC		视频放大器
页数	文件大小	规格书
25页	437K
描述
130 MHz/100 MHz RGB Video Amplifier System with Blanking

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数据手册

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LM1209 数据手册

January 1996

LM1208/LM1209

130 MHz/100 MHz RGB Video Amplifier System

with Blanking

General Description

Matched ( 0.1 dB or 1.2%) attenuators for contrast

control

The LM1208/LM1209 is a very high frequency video amplifi-

er system intended for use in high resolution RGB monitor

applications. In addition to the three matched video amplifi-

ers, the LM1208/LM1209 contains three gated single end-

ed input black level clamp comparators for brightness con-

trol, three matched DC controlled attenuators for contrast

control, and three DC controlled drive attenuators providing

independent full range gain control in each channel for wide

range white balance. All DC control inputs offer high input

impedance and an operation range from 0V to 4V for easy

interface to bus controlled alignment systems. The

Three externally gated single ended input comparators

for cutoff and brightness control

0V to 4V, high input impedance DC contrast control

(

40 dB range)

0V to 4V, high input impedance DC full range gain con-

trol (Drive) for each video channel ( 40 dB range)

Spot killer, blanks outputs when V

10.6V

Capable of

bandwidth)

7 V

output swing (slight reduction in

Output stage blanking

LM1208/LM1209 also contains

a blanking circuit which

Output stage directly drives most hybrid or discrete

CRT drivers

clamps the video output voltage during blanking to within

0.1V above ground. This feature provides blanking capabili-

ty at the cathodes of the CRT. A spot killer is provided for

CRT phosphor protection during power-down.

Applications

High resolution RGB CRT monitors

Video AGC amplifiers

Features

Wideband amplifiers with gain and DC offset controls

Three wideband video amplifiers 130 MHz

(4 V output)

3 dB

Interface amplifiers for LCD or CCD systems

Block and Connection Diagram

TL/H/11884–1

FIGURE 1

Order Number LM1208N or LM1209N

See NS Package Number N28B

1996 National Semiconductor Corporation

TL/H/11884

RRD-B30M66/Printed in U. S. A.

12 3 4 5 6 7...25

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