Title :
A programmable codec signal processor
Author :
Norsworthy, S.R. ; Bays, L.E. ; Fischer, J.
Author_Institution :
AT&T Bell Labs., Allentown, PA, USA
Abstract :
Delta-sigma (/spl Delta//spl Sigma/) codecs have traditionally been used in audio, speech, and telecommunications. More recently, there have been several commercial introductions of DSPs having an on-chip /spl Delta//spl Sigma/ codec with the shortcoming that they have little flexibility in controlling the decimation and interpolation ratios or filter characteristics. A new architecture is introduced that brings the /spl Delta//spl Sigma/ codec more intimately into the DSP.
Keywords :
codecs; digital signal processing chips; integrated circuit design; integrated circuit noise; interpolation; sigma-delta modulation; DSPs; decimation ratio; delta-sigma codecs; filter characteristics; interpolation ratio; programmable codec signal processor; Clocks; Codecs; Digital filters; Digital signal processing; Feeds; Filtering; Finite impulse response filter; Interpolation; Noise shaping; Signal processing;
Conference_Titel :
Solid-State Circuits Conference, 1996. Digest of Technical Papers. 42nd ISSCC., 1996 IEEE International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3136-2
DOI :
10.1109/ISSCC.1996.488557
