SL0600A

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. Order Code SL0200A SL0250A SL0300A SL0350A SL0400A SL0450A SL0500A SL0550A SL0600A SL0650A SL0700A SL0750A SL0800A SL0850A SL0900A SL0950A SL1000A SL1400A End of Passband MHz Start of Stopband MHz Group Delay Ripple ns max Delay Time ns 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 14.00 2.80 3.50 4.20 4.90 5.60 6.30 7.00 7.70 8.40 9.10 9.80 10.50 11.20 11.90 12.60 13.20 14.00 19.60 40 30 25 25 20 20 15 15 15 12 12 10 10 10 10 10 10 8 785 628 523 448 392 349 314 285 262 242 224 209 196 185 174 165 157 115 This range may be extended down to 0.5 MHz and up to 20 MHz. Filters with other end of passband frequencies within the range can be supplied at no extra cost. Order as SL****A inserting the frequency required in place of the asterisk eg for 5.23 MHz SL0523A. Other data Impedance 75 ohms Insertion Loss < 1.5 dB S topband attenuation wrt 100 kHz > 40 dB Amplitude ripple in passband < 0.3 dB Video performance for filters of 5.0 MHz (4.5 MHz for 525 line) and above. Pulse and bar: K - rating