com LM1212 230 MHz Video Amplifier System with OSD Blanking August 1996 LM1212 230 MHz Video Amplifier System with OSD Blanking General Description The LM1212 is a very high frequency video amplifier system intended for use in high resolution monochrome or RGB color monitor applications with OSD In addition to the wideband video amplifier the LM1212 contains a gated differential input black level clamp comparator for brightness control a DC controlled attenuator for contrast control and a DC controlled sub contrast attenuator for drive control The DC control for the contrast attenuator is pinned out separately to provide a more accurate control system for RGB color monitor...

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