Datasheet > LM1279N

LM1279N

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		商用集成电路视频放大器光电二极管
页数	文件大小	规格书
14页	537K
描述
110 MHz RGB Video Amplifier System with OSD

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LM1279N 数据手册

September 1998

LM1279

110 MHz RGB Video Amplifier System with OSD

n Fast OSD switching time, typically 5 ns

n 3.5 kV ESD protection

The LM1279 is a full featured and low cost video amplifier

n Fixed cutoff level typically set to 1.35V

General Description

with OSD (On Screen Display). 8V operation for low power

n 0V to 4V, high impedance DC contrast control with over

40 dB range

n 0V to 4V, high impedance DC drive control (0 dB to

−12 dB range)

and increased reliability. Supplied in a 20-pin DIP package,

accommodating very compact designs of the video channel

requiring OSD. All video functions controlled by 0V to 4V

high impedance DC inputs. This provides easy interfacing to

5V DACs used in computer controlled systems and digital

alignment systems. Unique OSD switching, no OSD switch-

ing signal required. An OSD signal at any OSD input typically

switches the LM1279 to the OSD mode within 5 ns. Ideal

video amplifier for the low cost OSD monitor with resolutions

up to 1280 x 1024. The LM1279 provides superior protection

against ESD. Excellent alternative for the MC13282 in new

designs.

n Matched ( 0.3 dB or 3.5%) attenuators for contrast

control

n Output stage directly drives CRT drivers

n Ideal combination with LM2407 CRT driver

Applications

n High resolution RGB CRT monitors

n Video AGC amplifiers

n Wideband amplifiers with contrast and drive controls

n Interface amplifiers for LCD or CCD systems

Features

n Three wideband video amplifiers 110 MHz −3dB (4

V_PPoutput)

n OSD signal to any OSD input pin automatically switches

all 3 outputs to the OSD mode

Block and Connection Diagram

DS100091-1

FIGURE 1. Order Number LM1279N

See NS Package Number N20A

DS100091

www.national.com

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与LM1279N相关器件

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LM1279N/NOPB	TI	获取价格	1 CHANNEL, VIDEO AMPLIFIER, PDIP20, DIP-20
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LM1282	NSC	获取价格	110 MHz RGB Video Amplifier System with On Screen Display (OSD)
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LM129	Linear	获取价格	6.9V Precision Voltage Reference
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