LM1246AAC/NA/NOPB

Video Processing Overview

The LM1246AAC/NA/NOPB is an integrated CMOS RGB video preamplifier manufactured by National Semiconductor, now part of Texas Instruments. Designed for CRT display applications, this component operates within a supply voltage range of 4.75V to 5.25V. It features an I2C compatible control interface for parameter configuration and delivers a bandwidth of 150MHz. The device is housed in a 24-pin DIP package with a standard pitch of 0.300 inches (7.62mm).

Video Processing Feature Summary

• Integrated CMOS technology designed specifically for RGB signal preamplification in CRT displays.
• I2C compatible digital control interface allows direct setup and adjustment of operational parameters.
• High bandwidth performance supporting video frequencies up to 150MHz.

Video Processing Applications

• CRT video display systems
• RGB signal conditioning circuits
• Video preamplifier stages

Video Processing Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm that the 24-DIP package dimensions match your existing board layout. Ensure compatibility with the 4.75V to 5.25V supply voltage requirements. Check for available alternatives from Texas Instruments if new production is required.

Video Processing Selection Notes

Select this component for legacy CRT designs requiring precise RGB preamplification. The I2C interface simplifies calibration compared to analog-only solutions. Verify that the 150MHz bandwidth meets the specific video resolution needs. Consider the DIP package form factor for through-hole mounting constraints.

Video Processing Part Context

This part belongs to the LM1246 series of video preamplifiers. It is related to variants such as LM1246DDC and LM1246AAC. The NOPB suffix indicates lead-free compliance. The manufacturer transitioned from National Semiconductor to Texas Instruments during its lifecycle.

Video Processing Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided documentation. Users should consult Texas Instruments official cross-reference tools for current equivalents. Verify pinout and electrical specifications carefully when substituting obsolete components.