LM1283N

Overview

The LM1283N is a full-featured video amplifier system designed for monitor applications with resolutions up to 140 MHz. It integrates RGB video amplification and On-Screen Display (OSD) inputs within a single 28-pin package. The component operates as a complete solution for video signal processing, combining high-bandwidth amplification capabilities with display overlay functionality in a through-hole DIP format.

Feature Summary

• Integrates RGB video amplification and OSD input handling
• Supports monitor resolutions up to 140 MHz bandwidth
• Consolidates multiple video functions into a single 28-pin package

Applications

• Computer monitors
• Video display systems
• General purpose video processing

Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets are managed by Texas Instruments. Confirm the package type is 28-DIP and the operating temperature range matches your specific environmental requirements. Ensure the part number suffix corresponds to the correct tape-and-reel or tube configuration if applicable to your assembly process.

Selection Notes

Select this component when a unified solution for RGB amplification and OSD generation is required. It is suitable for designs needing a 140 MHz bandwidth without separate OSD chips. Consider the 28-pin DIP package constraints for PCB layout and thermal management compared to surface-mount alternatives.

Part Context

This device belongs to the family of integrated video amplifier systems. It consolidates functions that were previously handled by discrete components or multiple ICs, simplifying the bill of materials for standard definition and high-resolution monitor designs.

Replacement Considerations

Consult official substitution guides for pin-compatible alternatives from Texas Instruments or other manufacturers offering similar 140 MHz RGB video amplifiers with OSD integration.