LM1203 National Semiconductor, LM1203 Datasheet
LM1203
Manufacturer Part Number
LM1203
Description
RGB Video Amplifier System
Manufacturer
National Semiconductor
Datasheet
1.LM1203.pdf
(16 pages)
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C 1996 National Semiconductor Corporation
LM1203 RGB Video Amplifier System
General Description
The LM1203 is a wideband video amplifier system intended
for high resolution RGB color monitor applications In addi-
tion to three matched video amplifiers the LM1203 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 (Av
to 10) as well as providing trim capability The LM1203 also
contains a voltage reference for the video inputs For high
resolution monochrome monitor applications see the
LM1201 Video Amplifier System datasheet
Block and Connection Diagram
TL H 9178
See NS Package Number NA28F
Order Number LM1203N
e
FIGURE 1
4
Features
Y
Y
Y
Y
Y
Y
Three wideband video amplifiers (70 MHz
Inherently matched (
contrast control
Three externally gated comparators for brightness con-
trol
Provisions for independent gain control (Drive) of each
video amplifier
Video input voltage reference
Low impedance output driver
RRD-B30M56 Printed in U S A
g
0 1 dB or 1 2%) attenuators for
January 1996
b
TL H 9178 – 1
3dB)
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