MC44BC375UEF

Video Processing Overview

The MC44BC375UEF is a PLL-tuned VHF audio/video modulator IC manufactured by Freescale Semiconductor. It integrates a programmable sound subcarrier oscillator and a PLL with an on-chip LC tank, eliminating the need for external varicap diodes or inductors. The device supports selectable channel tuning via pin inputs and offers adjustable video modulation depth with peak white clipping. It features a logic output port for antenna switching and robust ESD protection.

Video Processing Feature Summary

• Integrates a PLL with an on-chip LC tank circuit to eliminate the requirement for external tuned components such as varicap diodes or inductors.
• Features an on-chip programmable sound subcarrier oscillator that generates frequencies without external components.
• Includes a logic output port function that activates during standby mode to serve as an antenna switch driver.

Video Processing Applications

• VHF Audio/Video Modulation
• Set-Top Boxes
• VCRs

Video Processing Procurement Notes

Verify the specific suffix 'EF' against official NXP documentation to confirm package type and material compliance. Ensure the design accounts for the integrated PLL reference clock requirements. Confirm availability status as legacy products may have limited supply chains.

Video Processing Selection Notes

Select this component for applications requiring high integration in VHF modulation circuits. The internal LC tank simplifies PCB layout by removing sensitive external tuning elements. Consider the power save feature for systems requiring low standby current consumption.

Video Processing Part Context

This part belongs to the MC44BC375 family of high-integration modulators. It is designed to replace older discrete solutions or less integrated chips by combining RF generation and modulation functions into a single CMOS package.

Video Processing Replacement Considerations

Check for functional equivalents within the MC44BC375 series, such as variants with different suffixes for package or temperature ratings. Verify compatibility with existing channel selection pin configurations.