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October 2005
LM2452 220V Monolithic Triple Channel 17 MHz DC Coupled CRT DTV Driver
LM2452 220V Monolithic Triple Channel 17 MHz DC Coupled CRT DTV Driver
General Description
The LM2452 is a triple channel high
voltage DC coupled CRT driver circuit designed for use in DTV applications.
The IC contains three high input impedance, wide band
amplifiers which directly drive the RGB cathodes of a CRT.
Each amplifier has a summing input where the DC level of the output is controlled by a low
voltage DC input
voltage.
Normally the DC input
voltage is from a DAC.
Each channel has its gain internally set to −54 and can drive CRT capacitive loads as well as resistive loads presen...