Title :
A low-power digital filter for decimation and interpolation using approximate processing
Author_Institution :
Stanford Univ., CA, USA
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.
Keywords :
data conversion; digital filters; interpolation; 5 V; 86.4 mW; approximate processing; decimation; interpolation; low-power digital filter; oversampled data converter; single-chip multimedia audio system; Adaptive filters; Audio systems; Digital filters; Feedback; Filtering; Gold; Interpolation; Low pass filters; Read only memory; Read-write memory;
Conference_Titel :
Solid-State Circuits Conference, 1997. Digest of Technical Papers. 43rd ISSCC., 1997 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3721-2
DOI :
10.1109/ISSCC.1997.585281
