LM1203A Datasheet, PDF (1/18 Pages) National Semiconductor (TI) – 150 MHz RGB Video Amplifier System

January 1996
LM1203A
150 MHz RGB Video Amplifier System
General Description
The LM1203A is an improved version of the popular
LM1203 wideband video amplifier system The device is in-
tended for high resolution RGB CRT monitors In addition to
three matched video amplifiers the LM1203A contains
three gated differential input black level clamp comparators
for brightness control and three matched attenuator circuits
for contrast control Each video amplifier contains a gain set
or ‘‘Drive’’ node for setting maximum system gain or provid-
ing gain trim capability for white balance The LM1203A also
contains a voltage reference for the video inputs The
LM1203A is pin and function compatible with the LM1203
Features
Y _{Three wideband video amplifiers 150 MHz} b_{3 dB}
Y _{Matched (}g_{0 1 dB or 1 2%) attenuators for contrast}
control
Y _{Three externally gated comparators for brightness}
control
Y _{Provisions for individual gain control (Drive) of each}
video amplifier
Y _{Video input voltage reference}
Y _{Low impedance output driver}
Improvements over LM1203
Y _{150 MHz vs 70 MHz bandwidth}
Y _{VOUT low 0 15V vs 0 9V}
Y _{tr tf 4 ns vs 7 ns}
Y _{Built in power down spot killer}
Applications
Y _{High resolution RGB CRT monitors}
Y _{Video AGC amplifiers}
Y _{Wideband amplifiers with gain and DC offset controls}
Block and Connection Diagrams
C1996 National Semiconductor Corporation TL H 11441
FIGURE 1
Order Number LM1203AN
See NS Package Number N28B
RRD-B30M66 Printed in U S A
TL H 11441 – 1