LM1203C
RGB VIDEO-AMPLIFIER SYSTEM
SLVS099B – NOVEMBER 1994 – REVISED FEBRUARY 1996
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POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Wide Bandwidth Typ 70 MHz at –3 dB
D Matched ±0.5-dB Attenuators for Contrast
Control
D Three Externally Gated Comparators for
Brightness Control
D Independent Gain Control of Each Video
Amplifier ...AV = 4 V/V to 10 V/V
D Video-Input Voltage Reference
D Low-Impedance Output Driver
D Designed to Be an Improved Replacement
for Texas Instruments LM1203AN and
National Semiconductor LM1203
description
The LM1203C is a wide-band video-amplifier
system
intended
for
high-resolution
RGB
(red-green-blue) color monitor applications. In
addition to three matched video amplifiers, the
LM1203C 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 for adjusting maximum system gain
(AV = 4 V/V to 10 V/V) as well as providing trim
capability. The LM1203C also contains a voltage
reference for the video inputs.
The LM1203C is characterized for operation
from 0
°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
1996, Texas Instruments Incorporated
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VCC1
CONTRAST CAP1
CONTRAST CAP2
R VIDEO IN
R CLAMP CAP
G VIDEO IN
GND
G CLAMP CAP
B VIDEO IN
B CLAMP CAP
REF
CONTRAST
VCC1
CLAMP GATE
VCC1
R GAIN ADJUST
R CLAMP(–)
R VIDEO OUT
R CLAMP(+)
VCC2
G GAIN ADJUST
G CLAMP(–)
G VIDEO OUT
G CLAMP(+)
B GAIN ADJUST
B CLAMP(–)
B VIDEO OUT
B CLAMP(+)
N PACKAGE
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