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LM2202
230 MHz Video Amplifier System
TL/H/12591
LM2202
MHz
Video
Amplifier
System
December 1995
LM2202 230 MHz Video Amplifier System
General Description
The LM2202isa very high frequencyvideo amplifier system
intendedforusein high resolution monochromeor RGB
colormonitor applications.In additiontothe wideband video
amplifierthe LM2202 containsa gated differential input
black level clamp comparatorfor brightness control,aDC
controlled attenuatorfor contrast control andaDC con-
trolledsub contrast attenuatorfor drive control. TheDC
controlforthe contrast attenuatoris pinnedout separately providea more accurate control systemfor RGB color
monitor applications.AllDC controls offera high inputim-
pedanceand operate overa0Vto4V rangefor easy inter-
facetobus controlled alignment systems.The LM2202op-
erates froma nominal12V supplybutcanbe operatedwith
supply voltages downto8Vfor applicationsthat requirere-
ducedIC package power dissipation characteristics.
Features Wideband video amplifier
(fb3dBe 230 MHzatVOe 4VPP) tr,tfe1.5nsatVOe 4VPP Externally gated comparatorfor brightness control0Vto4V high input impedanceDC contrast control
(l40dB range)0Vto4V high input impedanceDC drive control
(g3dB range) Easyto parallel three LM2202sfor optimum color track-
ingin RGB systems Output stage clampsto 0.65V and providesupto9V
output voltage swing Output stage directly drives most hybridor discrete
CRT amplifier stages Replacementforthe LM1202
Applications
High resolution CRT monitors
Video switches
Video AGC amplifier
Wideband amplifier with gainandDC offset control
Block and Connection Diagram
TL/H/12591–1
OrderNumber LM2202Nor LM2202M
SeeNS Package Number N20AorM20B
C1996National SemiconductorCorporation RRD-B30M26/PrintedinU.S.A.
