LM2468TA

LM2468 Monolothic Triple 14nS High Gain CRT Driver December 2000 LM2468 Monolothic Triple 14nS High Gain CRT Driver General Description The LM2468 is an integrated high voltage CRT driver circuit designed for use in color monitor applications. The IC contains three high input impedance wide band amplifiers, which directly drive the RGB cathodes of a CRT. Each channel has its gain internally set to -20 and can drive CRT capacitive loads as well as resistive loads present in other applications, limited only by the package’s power dissipation. The IC is packaged in an industry standard 9 lead TO-220 molded plastic package. n 0V to 3.75V input range n Stable with 0-20pF capacitive loads and inductive peaking networks n Matched to the LM126X series preamplifier and LM2479/2480 bias clamp n Maintains standard LM243X Family Pinout which is designed for easy PCB layout n Convenient TO-220 staggered 9 lead package style Applications n Up to 1024 X 768 at 60 Hz (or 800 X 600 at 72/75 Hz) n Pixel clock frequencies up to ∼50 MHz n Monitors using video blanking Features n Higher gain to accommodate CMOS preamplifiers Schematic Diagram Connection Diagram DS200135-2 Note: Tab is at GND. DS200135-1 FIGURE 1. Simplified Schematic Diagram (One Channel) FIGURE 2. Top View Order Number: LM2468TA NS package Number: TA09A © 2000 National Semiconductor Corporation DS200135 www.national.com LM2468 Absolute Maximum Ratings (Notes 1, 3) If Military/Aerospace specified devices are requi...