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 BFB1432F BFB1432S Filter Shape Lowpass Lowpass Passband Shape Flat Sinx/x Sampling Frequency 14.32 MHz 14.32 MHz Insertion Loss at 100 kHz < 1.5 dB < 4.5 dB End Of Passband 5.51 MHz 5.51 MHz Passband Amplitude Ripple 0.1 dB max 0.1 dB max Loss at half S.F. 12 dB + 2 dB 12 dB + 2 dB Start Of Stopband 9.12 MHz 9.12 MHz Stopband Attenuation 40 dB min 40 dB min Delay Time at 200 kHz 188 ns + 5 ns 217 ns + 5 ns Pulse and bar: K - rating 1% 1% Impedance 75 ohms 75 ohms Temperature Range 0°C to 70°C 0°C to 70°C Aqueous Washable Yes Yes Package Type DR00275A DR00253A © 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 [email protected] http://www.faradaytech.co.uk Mar-00(A)