Features • Built-in video blanking function • Built-in sync separator for composite video input • Includes DC restoration of video signals • Back porch clamp pulse width user adjustable • DC control of brightness, contrast, blanking level, drive and cutoff • DC controls are 0V to 4V for easy interfacing to a digitally controlled system Description The LM1204 is a triple 150 MHz video amplifier system designed specifically for high resolution RGB video display applications. In addition to three matched video amplifiers, the LM1204 contains a DC operated contrast control, a DC operated drive control for each amplifier, and a dual clamping system for both brightness control and video blanking. The LM1204 also contains a back porch clamp pulse generator which is activated by an externally supplied ±H/HV sync signal or by an external composite video signal. The ±H/HV sync input will have priority over the composite video input. A single -H/HV sync output is provided for the automatically selected sync input signal. The back porch clamp pulse width is user adjustable from 0.3 µs to 4 µs. The LM1204 video output stage will directly drive most Hybrid or discrete CRT amplfier input stages without the need for an external buffer transistor. The device has been designed to operate from a 12V supply with all DC controls operating over a 0V to 4V range providing for an easy interface to serial digital buss controlled monitors. Key Specification • 150 MHz large signal bandwidth (typ) • 2.3 ns rise/fall times (typ) • 0.1 dB contrast tracking (typ) • ±3 dB drive ([DELTA] gain) adjustments on R, G, B channels (typ) Applications • High resolution CRT monitors • Video AGC amplifier • Wideband amplifier with gain and DC offset control

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Datasheet

Title		Size	Date	Other Language
	LM1204 150 MHz RGB Video Amplifier System	399 Kbytes	7-Jan-96

Featured Application Notes

Title		Size	Date	Other Language
	AN-934: Using the LM1204 with Large Horizontal Sync Widths	56 Kbytes	4-Nov-95

More Application Notes

Title		Size	Date	Other Language
	AN-184: Application Note 184 References for A/D Converters	64 Kbytes	3-Oct-02	日本語
	AN-97: Application Note 97 Versatile Timer Operates from Microseconds to Hours	457 Kbytes	24-Feb-99
	AN-79: Application Note 79 IC Preamplifier Challenges Choppers on Drift	380 Kbytes	1-Oct-02
	AN-173: Application Note 173 IC Zener Eases Reference Design	54 Kbytes	1-Oct-02
	AN-706: Application Note 706 LM628/629 User Guide	332 Kbytes	26-Sep-02
	AN-182: Application Note 182 Improving Power Supply Reliability with IC Power Regulators	27 Kbytes	3-Oct-02
	AN-178: Application Note 178 Applications for an Adjustable IC Power Regulator	40 Kbytes	3-Oct-02
	AN-262: Application Note 262 Applying Dual and Quad FET Op Amps	416 Kbytes	2-Oct-02
	AN-161: Application Note 161 IC Voltage Reference has 1 ppm per Degree Drift	138 Kbytes	10-Oct-02
	AN-446: A 150W IC Op Amp Simplifies Design of Power Circuits	252 Kbytes	4-Nov-95
	AN-446B: Application Note 446B A Monolithic Power Op Amp	1047 Kbytes	1-May-98
	AN-104: Application Note 104 Noise Specs Confusing?	208 Kbytes	14-Oct-02

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM1204V	NONE	NONE	02 Dec 2003