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Linear-phase halfband SC video interpolation filter with coefficient-sharing and spread-reduction
U Seng-Pan; Martins R.P.; Franca J.E.
2000
Source PublicationProceedings - IEEE International Symposium on Circuits and Systems
Volume3
AbstractThis paper proposes a 4-fold multistage Switched-Capacitor (SC) interpolation filter with 5 MHz passband and 54 MHz output sampling rate for NTSC/PAL digital video signal processing systems. The circuit implements an impulse sampled halfband interpolation with 23- and 7-tap FIR filtering in 1- and 2-stage respectively for achieving a linear-phase response. A novel area-efficient technique including symmetrical-coefficient-sharing and spread-reduction is proposed in this transversal SC circuit embedding minimized mismatch-free analog delay lines with accurate, wideband gain- and offset-compensation. This filter is designed with optimized speed of the analog components in 0.35 μm CMOS technology and expected to consume about 2 mm active area and 90 mW at 3.0 V supply.
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Language英語
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Document TypeConference paper
专题DEPARTMENT OF ELECTRICAL AND COMPUTER ENGINEERING
AffiliationUniversidade de Macau
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GB/T 7714
U Seng-Pan,Martins R.P.,Franca J.E.. Linear-phase halfband SC video interpolation filter with coefficient-sharing and spread-reduction[C],2000.
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