Part # LM1282 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM1282 110 MHz RGB Video Amplifier System with On Screen Display (OSD)

Part Details:

LM1282 June 1998 1 LM1282 10MHz 110 MHz RGB Video Amplifier System with On ScreenDisplay (OSD) RGB General Description n TTL OSD inputs, 50 MHz bandwidth n On chip blanking, outputs under 0.1 V when blanked The LM1282 is a full feature video amplifier with OSD inputs, V n High speed Video/OSD switch all within a 28-pin package. This part is intended for use in ideo monitors with resolutions up to 1280 x 1024. The video sec- n Independent drive control for each channel for color tion of the LM1282 features three matched video amplifiers balance with blanking. All of the video amplifier adjustments feature n 0V to 4V, high impedance DC contrast control with over high input impedance 0V to 4V DC controls, providing easy 40 dB range Amplifier interfacing to bus controlled alignment systems. The OSD n 0V to 4V, high impedance DC drive control (0 dB to section features three TTL inputs and a DC contrast control. -12 dB range) The switching between the OSD and video section is con- n 0V to 4V, high impedance DC OSD contrast control with trolled by a single TTL input. Although the OSD signals are over 40 dB range TTL inputs, these signals are internally processed to match n Capable of 7 V output swing (slight reduction in PP the OSD logic low level to the video black level. When ad- bandwidth) System justing the drive controls for color balance of the video sig- n Output stage directly drives most hybrid or discrete CRT nal, the color balance of the OSD display will track these drivers color adjustments. The LM1282 also features an internalspot killer circuit to protect the CRT when the monitor is Applications turned off. For applications without OSD insertion please re-fer to the LM1205 or LM1208 data sheets. n High resolution RGB CRT monitors requiring OSD with capability Featuresn Three wideband video amplifiers 110 MHz @ -3 dB On (4 V output) PP Screen

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LM1282.pdf Datasheet