GENERAL DESCRIPTION
The ML6440 SmartComb™ is a single-chip, 8-bit digital comb filter that incorporates line delays and adaption algorithms for NTSC and PAL at both CCIR601 and square pixel rates. The ML6440 implements bandsplit filters and a proprietary adaption and decision logic block that allows for optimum combing over a wide range of video sources.

FEATURES
■ SmartComb algorithm for automatic or manual selection adaption thresholds
■ 3-line comb with 60+ line frame adjust
■ Comb/notch thresholds set dynamically over 60+ lines automatically
■ 12-bit processing minimizes truncation errors and maintains signal-to-noise performance
■ Optional 8-bit composite or separated Y/C digital inputs
■ Applications: digital TV, line doubler, imaging
■ Separate comb/notch filter thresholds for Luma and Chroma channels
■ Optional pin controls or two-wire serial control interface
■ Operating power dissipation less than 700mW
■ No external components, except diode and caps