LM1212

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 applications. It could be used in: (1) High resolution CRT monitors with OSD; (2) Video switches; (3) Video AGC amplifier; (4) Wideband amplifier with gain and DC offset control.

Features of the LM1212 are:(1) Wideband video amplifier (fb3 dB e 230 MHz at VO e 4 VPP); (2) tr, tf e 1.5 ns at Vo = 4 VPP; (3)0V to 4V high input impedance DC contrast control (>40 dB range); (4) 0V to 4V high input impedance DC drive control(±3 dB range); (5) Ouput blanked to <0.4V for OSD window; (6) Easy to parallel three LM1212s for optimum color tracking in RGB systems; (7)Output stage clamps to 0.65V and provides up to 9V output voltage swing; (8) Output stage directly drives most hybrid or discrete CRT amplifier stages.

The absolute maximum ratings of the LM1212 can be summarized as:(1)supply voltage:15V;(2)Voltage at Any Input Pin:VCC VIN GND;(3)Video Output Current: 28mA;(4)DPackage Power Dissipation at TA = 25°C :1.56W;(5)storage temperature:-65°C to +150°C;(6)Lead Temperature (10 sec):265°C. If you want to know more information such as the electrical characteristics about the LM1212, please download the datasheet in www.seekic.com or www.chinaicmart.com.