GENERAL PURPOSE VIDEO FILTERS

SL...A SERIES STEEPNESS FACTOR 1.40

This range of 7-pole Elliptical Function Low Pass Filters is intended for bandwidth limitation with minimal distortion of the transmitted signal. The filters are corrected for Group Delay distortion over approx. 92% of the passband and for loss distortion over the entire passband. Degradation of a composite video signal is minimal when a 4.5 MHz or 5.5 MHz filter is selected for a 525 or 625 line T.V. system. Specifically the 14.0 MHz filter has become popular in COFDM systems to band limit 8.0 MHz signals centred on 9.143 MHz.