The LM1205 LM1207 is a very high frequency video amplifi-
er system intended for use in high resolution RGB monitor
applications In addition to the three matched video amplifi-
ers the LM1205 LM1207 contains three gated single end-
ed input black level clamp comparators for brightness con-
trol three matched DC controlled attenuators for contrast
control and three DC controlled sub-contrast attenuators
providing gain trim capability for white balance All DC con-
trol inputs offer high input impedance and an operation
range from 0V to 4V for easy interface to bus controlled
alignment systems The LM1205 LM1207 also contains a
blanking circuit which clamps the video output voltage dur-
ing blanking to within 0 1V above ground This feature pro-
vides blanking capability at the cathodes of the CRT A spot
killer is provided for CRT phosphor protection during power-
down
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