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| FF...UD SERIES GENERAL PURPOSE LP FILTER STEEPNESS FACTOR 1.35 This range of 7-pole Elliptical Function Low Pass Filters is similar to a type which has been successfully used in broadcasting for many years but is offered in a small size with improved group delay and amplitude ripple. The filters are corrected for Group Delay distortion over approx. 95% 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. Order Code FF0200UD FF0250UD FF0300UD FF0350UD FF0400UD FF0450UD FF0500UD FF0550UD FF0600UD FF0650UD FF0700UD FF0750UD FF0800UD FF0850UD FF0900UD FF0950UD FF1000UD 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 2.70 3.38 4.05 4.73 5.40 6.08 6.75 7.43 8.10 8.78 9.45 10.13 10.80 11.48 12.15 12.83 13.50 25.0 20.0 17.0 15.0 13.0 11.0 10.0 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.5 5.0 1575 1260 1050 900 786 700 630 573 525 485 450 420 394 370 350 332 315 This range may be extended up to 30 MHz. Filters with other end of passband frequencies within the range can be supplied at no extra cost. Order as FF****UD inserting the frequency required in place of the asterisk eg for 5.23 MHz FF0523UD. Other data Impedance 75 ohms Stopband attenuation wrt 100 kHz > 40 dB Amplitude ripple in passband < 0.05 dB Video performance for filters of 5.0 MHz (4.5 MHz for 525 line) and above. Pulse and bar: K - rating < 0.5% Luminance/Chrominance Gain inequality (20T) < 2% Luminance/Chrominance Delay inequality < 10 ns Aqueous Washable No Package DR00065B (c) Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice FARA039d Page 1 of 2 Dec-99(C) PACKAGE DETAIL Faraday Technology Ltd. Croft Road Industrial Estate, Newcastle, Staffordshire ST5 0QZ. England. FARA039d Tel: Fax: Email: Web site: Page 2 of 2 + 44 (0)1782 661501 + 44 (0)1782 630101 sales@faradaytech.co.uk http://www.faradaytech.co.uk Dec-99(C) |
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