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| ? faraday technology. as part of continual product improvement the specifications, details and dimensions shown in this publication are subject to change without notice fara022.doc page 1 of 2 jun-99 (a) the AH843 has been designed for ntsc post d/a applications with accurate sinx/x correction for the 12.27 mhz square pixel rate. interfacing to the system is simplified with high input and low output impedance op-amp buffer stages. filter shape lowpass passband shape sinx/x sampling frequency 12.27 mhz gain - 0.2 db + 0.2 db with pin 6 open +5.8 db + 0.2 db with pin 6 gnd end of passband 4.4 mhz passband amplitude ripple 0.25 db max loss at 6.6 mhz wrt 4.4 mhz 30 db + 2 db start of stopband 7.0 mhz stopband attenuation wrt 4.4 mhz 40 db min to 20 mhz 35 db min to 50 mhz group delay ripple wrt 200 khz + 10.0 ns max to 4.3 mhz delay time at 200 khz 338 ns + 10 ns typical current 50 ma (25 ma per rail at + 5 v) input impedance 10 m w typical package dr00032a AH843 fully buffered square pixel ntsc post filter
package detail faraday technology ltd. tel: + 44 (0)1782 661501 croft road industrial estate, fax: + 44 (0)1782 630101 newcastle, staffordshire email: sales@faradaytech.co.uk st5 0qz. england. web site: http://www.faradaytech.co.uk fara022.doc page 2 of 2 jun-99 (a) |
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