Datasheet > LM1279AN

LM1279AN

更新时间： 2024-11-11 23:46:39

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其他 - ETC		商用集成电路视频放大器光电二极管
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描述
Triple Video Amplifier

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LM1279AN 数据手册

October 1999

LM1279A

110 MHz RGB Video Amplifier System with OSD

n Fast OSD switching time, typically 5 ns

n 3.5 kV ESD protection

The LM1279A is a full featured and low cost video amplifier

n Fixed cutoff level typically set to 1.2V

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 LM1279A to the OSD mode within 5 ns. Ideal

video amplifier for the low cost OSD monitor with resolutions

up to 1024 x 768. The LM1279A provides superior protection

against ESD. Excellent alternative for the MC13282 in new

designs.

n Matched ( 0.1 dB or 1.2%) attenuators for contrast

control

n Output stage directly drives most hybrid or discrete CRT

drivers

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

DS101250-1

FIGURE 1. Order Number LM1279AN

See NS Package Number N20A

DS101250

www.national.com

12 3 4 5 6 7...13

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与LM1279AN相关器件

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LM1279AN/NOPB	TI	获取价格	3 CHANNEL, VIDEO AMPLIFIER, PDIP20
LM1279N	NSC	获取价格	110 MHz RGB Video Amplifier System with OSD
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