FMS6646MTC20X

Video Processing Overview

The FMS6646MTC20X is a six-channel video filter driver designed for standard definition and high definition 1080p applications. It integrates low-pass reconstruction filters with output drivers to compensate for group delay and chroma/luma timing errors in television receivers. The device includes an audio notch filter at approximately 4.5 MHz to eliminate interference between audio and video signals before RF modulation on channels 3 and 4. Packaged in a 20-TSSOP, it supports consumer video processing requirements.

Video Processing Feature Summary

• Integrates five-order video filtering with output drivers for SD/HD signal conditioning
• Includes FCC pre-distortion circuitry to correct group delay and chroma/luma timing errors
• Features a dedicated audio notch filter to prevent channel 3/4 interference

Video Processing Applications

• Cable and satellite set-top boxes
• Consumer video processing systems
• Television receiver input stages

Video Processing Procurement Notes

Verify component status as the part may be obsolete. Confirm package integrity and pinout compatibility with existing PCB footprints. Check for alternative sourcing through authorized distributors or surplus suppliers if original manufacturing lines are discontinued. Ensure datasheet revisions match design specifications.

Video Processing Selection Notes

Select this component for designs requiring integrated filtering and driving for multiple video channels. It addresses specific timing distortion issues in TV reception. Consider availability constraints due to potential obsolescence. Evaluate whether newer ON Semiconductor equivalents offer improved performance or longer lifecycle support for new productions.

Video Processing Part Context

This part belongs to the Fairchild Semiconductor video processing family, now under ON Semiconductor following the 2016 acquisition. It is specifically engineered for high-integration video front-ends. The TSSOP package facilitates surface-mount assembly in compact consumer electronics devices requiring multi-channel video handling.

Video Processing Replacement Considerations

Check for direct substitutes within the ON Semiconductor portfolio. Verify functional equivalence regarding channel count and filter characteristics. Review updated datasheets for any changes in electrical parameters or pin configurations compared to the original Fairchild specification.