Wideband video amplifier (f-3dB = 230 MHz at VO = 4 VPP)
tr, tf = 1.5 ns at VO = 4 VPP
Externally gated comparator for brightness control
0V to 4V high input impedance DC contrast control (>40 dB range)
0V to 4V high input impedance DC drive control (±3 dB range)
Easy to parallel three LM2202s for optimum color tracking in RGB systems
Output stage clamps to 0.65V and provides up to 9V output voltage swing
Output stage directly drives most hybrid or discrete CRT amplifier stages
Replacement for the LM1202
Description
The LM2202 is a very high frequency video amplifier system intended for use in high resolution monochrome or RGB color monitor applications. In addition to the wideband video amplifier the LM2202 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. All DC controls offer a high input impedance and operate over a 0V to 4V range for easy interface to bus controlled alignment systems. The LM2202 operates from a nominal 12V supply but can be operated with supply voltages down to 8V for applications that require reduced IC package power dissipation characteristics.
