LM1203B Datasheet, PDF (1/16 Pages) National Semiconductor (TI) – 100 MHz RGB Video Amplifier System

January 1996
LM1203B
100 MHz RGB Video Amplifier System
General Description
The LM1203B 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 LM1203B 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 LM1203B also
contains a voltage reference for the video inputs The
LM1203B is pin and function compatible with the LM1203
Applications
Y _{High resolution RGB CRT monitors}
Y _{Video AGC amplifiers}
Y _{Wideband amplifiers with gain and DC offset controls}
Features
Y _{Three wideband video amplifiers (100 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}
Y _{Stable on a single sided board}
Improvements over LM1203
Y _{100 MHz vs 70 MHz bandwidth}
Y _{VOUT low}
Y _{tr tf}
Y _{Built in power down spot killer}
0 15V vs 0 9V
3 7 ns vs 5 ns
Block and Connection Diagrams
28-Lead Molded DIP
C1996 National Semiconductor Corporation TL H 11489
Order Number LM1203BN
See NS Package Number N28B
RRD-B30M66 Printed in U S A
TL H 11489 – 1