LM1283N National Semiconductor, LM1283N Datasheet
LM1283N
Specifications of LM1283N
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LM1283N Summary of contents
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... Capable of 6 bandwidth) n Output stage directly drives most hybrid or discrete CRT drivers Applications n High resolution RGB CRT monitors requiring OSD capability @ −3 dB FIGURE 1. Order Number LM1283N See NS Package Number N28B April 1999 output swing (slight reduction in DS012684-1 www.national.com ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Pins 6, 9, and 22 Peak Video Output Source Current (Any One Amp) Pins 18, 20, and 23 Voltage at Any Input Pin ( Power Dissipation (P ...
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AC Electrical Characteristics = 25˚C, V See AC Test Circuit ( Figure for the AC test unless otherwise stated (Note 15) Symbol Parameter A Video Amplifier Gain V max A Contrast Attenuation @ 2V ...
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OSD Electrical Characteristics = 25˚C; V See DC Test Circuit ( Figure unless otherwise stated 0V Symbol Parameter t (OSD) Ending OSD Propagation Delay f-prop V 10 kHz Video Feedthrough into OSD ...
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Typical Performance Characteristics Attenuation vs Contrast Voltage DS012684-2 LM1283 Crosstalk vs Frequency LM1283 Contrast vs Frequency = 12V 25˚C unless otherwise specified Attenuation vs Drive Voltage LM1283 Drive vs Frequency DS012684-4 DS012684-5 5 DS012684-3 DS012684-6 ...
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Timing Diagrams FIGURE 2. Blanking Progagation Delay and Rise/Fall Time FIGURE 3. Video to OSD, OSD to Video Propagation Delay and Switching Time www.national.com DS012684-7 DS012684-8 6 ...
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Timing Diagrams (Continued) FIGURE 4. OSD Propagation Delay and Rise/Fall Times Test Circuits FIGURE 5. LM1283 OSD Video Preamp DC Test Circuit DS012684-9 7 DS012684-10 www.national.com ...
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Test Circuits (Continued) FIGURE 6. LM1283 OSD Video Preamp AC Test Circuit www.national.com 8 DS012684-11 ...
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Test Circuits (Continued) * Note: All video inputs must have a series 33 resistor for protection against EOS (Electrical Over Stress). If the OSD input signals are external to the monitor, or these signals are present any time when +12V ...
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Pin Descriptions (Continued) Pin No. Pin Name 5 Red Video In 8 Green Video In 11 Blue Video CC1 9 7 Ground REF 13 Video Contrast 14 OSD Constrast 26 Blue Drive 27 ...
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Pin Descriptions (Continued) Pin No. Pin Name 25 RGB Cutoff Adjust Functional Description Figure 1 on the front page shows the block diagram of the LM1283 along with the pinout of the IC. Each channel re- ceives both a video ...
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... FIGURE 8. LM1283 Rise Time FIGURE 9. LM1283 Fall Time References Zahid Rahim, “Guide to CRT Video Design,” Application Note 861, National Semiconductor Corp., Jan. 1993 Ott, Henry W. Noise Reduction Techniques in Electronic sys- tems , John Wiley & Sons, New York, 1976 12 DS012684-22 ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...