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SL0850A Scheda tecnica(PDF) 1 Page - Faraday Technology |
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SL0850A Scheda tecnica(HTML) 1 Page - Faraday Technology |
1 / 3 page © Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice FARA043d Page 1 of 2 Aug-05(B) 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 End of Passband Start of Stopband Group Delay Ripple Delay Time MHz MHz ns max ns SL0200A 2.00 2.80 40 785 SL0250A 2.50 3.50 30 628 SL0300A 3.00 4.20 25 523 SL0350A 3.50 4.90 25 448 SL0400A 4.00 5.60 20 392 SL0450A 4.50 6.30 20 349 SL0500A 5.00 7.00 15 314 SL0550A 5.50 7.70 15 285 SL0600A 6.00 8.40 15 262 SL0650A 6.50 9.10 12 242 SL0700A 7.00 9.80 12 224 SL0750A 7.50 10.50 10 209 SL0800A 8.00 11.20 10 196 SL0850A 8.50 11.90 10 185 SL0900A 9.00 12.60 10 174 SL0950A 9.50 13.20 10 165 SL1000A 10.00 14.00 10 157 SL1400A 14.00 19.60 8 115 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 s upplied 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 Stopband 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 < 1 % Luminance/Chrominance Gain inequality (20T) < 3 % SL...A SERIES GENERAL PURPOSE VIDEO FILTERS |
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