LM1279N

Overview

The LM1279N is a single-channel video amplifier manufactured by Texas Instruments, formerly National Semiconductor. It is housed in a 20-pin PDIP package. The device functions as an RGB video amplifier system with On-Screen Display (OSD) capabilities and operates at a bandwidth of 110 MHz.

Feature Summary

• Integrates RGB video amplification within a single channel architecture
• Includes built-in On-Screen Display (OSD) generation functionality
• Designed for high-frequency signal processing with 110 MHz bandwidth

Applications

• RGB video signal conditioning circuits
• Video systems requiring integrated OSD overlay
• Professional video equipment signal paths

Procurement Notes

Verify the manufacturer designation carefully, as the component history involves both National Semiconductor and Texas Instruments. Confirm the specific datasheet version to ensure compatibility with the intended OSD and video amplification requirements. Check for alternative suffixes such as NOPB which may indicate lead-free compliance or packaging variations without changing the core function.

Selection Notes

Select this component when a single-chip solution for RGB video amplification and OSD is required. Ensure the design supports the 20-pin DIP form factor. Verify that the 110 MHz bandwidth meets the specific video frequency requirements of the application before finalizing the part selection.

Part Context

This component belongs to the family of analog video interface devices produced by National Semiconductor, now part of Texas Instruments. It serves as a specialized integrated circuit for handling multiple video color channels simultaneously while managing display overlays, distinguishing it from standard operational amplifiers.