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FL715 Datasheet(PDF) 1 Page - Faraday Technology |
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FL715 Datasheet(HTML) 1 Page - Faraday Technology |
1 / 2 page © Faraday Technology. As part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice Fara070d Page 1 of 2 Aug-05(C) Features • Space saving SIL package • Small size, low cost • Sinx/x Selectable or Flat versions • Luminance and Chrominance versions This range of analogue filters has been designed for use in conjunction with a half band interpolating/decimating filter such as the TRW2242 or with the many encoder chips available which employ digital filtering combined with an output D to A converter. This type of digital filtering has good attenuation between the frequencies of Fs/4 and 3Fs/4 where Fs is the Master Clock rate. When the normal clock rate of 27 MHz is used for the luminance channel the signal can be expected to have insignificant energy between 6.75 MHz and 20.25 MHz. An analogue filter is required to attenuate the clock and sideband to reconstruct the signal. In order to preserve the integrity of the signal these filters have a good amplitude and group delay characteristics in the passband, similar to the requirements of CCIR601 but due to the above considerations do not need significant attenuation below 21 MHz. Order code FL676 FL714 FL677 FL715 Impedance 75 Ω 75 Ω 75 Ω 75 Ω Sinx/x correction No Selectable No Selectable Sampling Frequency 27.0 MHz 27.0 MHz 13.5 MHz 13.5 MHz End of Passband 5.75 MHz 5.75 MHz 2.75 MHz 2.75 MHz Amp. Ripple Flat < 0.1 dB < 0.1 dB < 0.1 dB < 0.1 dB Sinx/x 1 - < ± 0.2 dB - < ± 0.2 dB G.D. ripple Flat < 6 ns < 6 ns < 12 ns < 12 ns Sinx/x - < 10 ns - < 20 ns Start of stopband 21.5 MHz 21.5 MHz 10.75 MHz 10.75 MHz Stopband atten. 2 >40 dB > 40 dB > 40 dB > 40 dB Delay time nom. 3 30 ns 27 ns 58 ns 50 ns Aqueous Washable Yes Yes Yes Yes Package DR00034A DR00064B DR00034A DR00064B 1 Sinx/x amplitude ripple measured wrt 100 kHz 2 Stopband attenuation measured wrt 100 kHz 3 Nominal delay time measured at 200 kHz Other package sizes and styles are available Video Oversampling Filters SIL RANGE |
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