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| BFB SERIES ANTIALIASING FILTERS These very small, low cost, filters are intended for use with A-D and D-A composite NTSC video converters using a sample rate of 4 x sub-carrier frequency. The cut off rate is slower than often recommended to reduce time domain ringing. The pre-filters have a flat passband and the post-filters are shaped to provide sinx/x correction. Filters suitable for different sampling rates or with various losses at the half sampling frequency can be supplied. Type Number Filter Shape Passband Shape Sampling Frequency Insertion Loss at 100 kHz End Of Passband Passband Amplitude Ripple Loss at half S.F. Start Of Stopband Stopband Attenuation Delay Time at 200 kHz Pulse and bar: K - rating Impedance Temperature Range Aqueous Washable Package Type BFB1432F Lowpass Flat 14.32 MHz < 1.5 dB 5.51 MHz 0.1 dB max 12 dB + 2 dB 9.12 MHz 40 dB min 188 ns + 5 ns 1% 75 ohms 0C to 70C Yes DR00275A BFB1432S Lowpass Sinx/x 14.32 MHz < 4.5 dB 5.51 MHz 0.1 dB max 12 dB + 2 dB 9.12 MHz 40 dB min 217 ns + 5 ns 1% 75 ohms 0C to 70C Yes DR00253A (c) Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice FARA175d Page 1 of 2 Mar-00(A) PACKAGE DETAIL Faraday Technology Ltd. Croft Road Industrial Estate, Newcastle, Staffordshire ST5 0QZ. England. FARA175d 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 Mar-00(A) |
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