Title :
Continuous-time sigma-delta modulator with an arbitrary feedback waveform
Author_Institution :
Wireless Design Dept., Motorola Semicond., Toulouse, France
Abstract :
Two different approaches to transform a discrete-time sigma-delta modulator into a continuous-time system with an arbitrary feedback waveform are presented. Taking the real shape of the feedback pulse into account at system-level allows one to adjust the modulator coefficients in order to compensate for the circuit nonidealities
Keywords :
circuit feedback; continuous time systems; sigma-delta modulation; arbitrary feedback waveform; circuit nonidealities; continuous-time sigma-delta modulator; feedback pulse shape; modulator coefficients; Convolution; Delta-sigma modulation; Discrete transforms; Feedback circuits; Pulse circuits; Pulse modulation; Pulse shaping methods; Sampling methods; Shape; Transfer functions;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921850
