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LM1203 RGB Video Amplifier SystemGeneral DescripTIonThe LM1203 is a wideband video amplifier system intendedfor high resoluTIon RGB color monitor applicaTIons. In addiTIonto three matched video amplifiers, the LM1203 containsthree gated differential input black level clamp comparatorsfor brightness control and three matched attenuator circuitsfor contrast control. Each video amplifier contains a gain setor ``Drive' node for setting maximum system gain (Av e 4to 10) as well as providing trim capability. The LM1203 alsocontains a voltage reference for the video inputs. For highresolution monochrome monitor applications see theLM1201 Video Amplifier System datasheet.FeaturesY Three wideband video amplifiers (70 MHz @ b3dB)Y Inherently matched (g0.1 dB or 1.2%) attenuators forcontrast controlY Three externally gated comparators for brightness controlY Provisions for independent gain control (Drive) of eachvideo amplifierY Video input voltage referenceY Low impedance output driver
