This part is a kind of semiconductor called LM1207N.

Function of this product has 130 MHz/85 MHz RGB Video Amplifier System with Blanking.

Manufacturers : National Semiconductor

Image and pinout :

Some of the text within the PDF file :

LM1205 LM1207 130 MHz 85 MHz RGB Video Amplifier System with Blanking January 1996 LM1205 LM1207 130 MHz 85 MHz RGB Video Amplifier System with Blanking General Description The LM1205 LM1207 is a very high frequency video amplifier system intended for use in high resolution RGB monitor applications In addition to the three matched video amplifiers the LM1205 LM1207 contains three gated single ended input black level clamp comparators for brightness control three matched DC controlled attenuators for contrast control and three DC controlled sub-contrast attenuators providing gain trim capability for white balance All DC control 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 bla [ ... ]

LM1207N PDF Datasheet Download