1. A low-power digital filter for decimation and interpolation using approximate processing
- Author
-
C.J. Pan
- Subjects
Half-band filter ,Decimation ,Demosaicing ,Computer science ,MathematicsofComputing_NUMERICALANALYSIS ,Filter (signal processing) ,Reconstruction filter ,Audio filter ,Adaptive filter ,ComputingMethodologies_SYMBOLICANDALGEBRAICMANIPULATION ,Electronic engineering ,Prototype filter ,Network synthesis filters ,Digital filter ,ComputingMethodologies_COMPUTERGRAPHICS ,Interpolation - Abstract
This low-pass filter implements approximate processing for decimation and interpolation in oversampled data converters. Included in an experimental circuit are a pair of decimation filters and two pairs of interpolation filters in a single-chip multimedia audio system. Total power for these filters is 86.4 mW with 5 V power supply when the full order of the filters is used. Power is reduced by 36% for decimation and 17% for interpolation when approximate filtering is enabled.
- Published
- 2002
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