DocumentCode :
1167709
Title :
A New High-Level Synthesis Methodology of Cascaded Continuous-Time \\Sigma \\Delta Modulators
Author :
Tortosa, Ramon ; De la Rosa, Jose M. ; Fernandez, Francisco V. ; Rodriguez-Vazquez, Angel
Author_Institution :
Inst. of Microelectron. of Seville (IMSE)
Volume :
53
Issue :
8
fYear :
2006
Firstpage :
739
Lastpage :
743
Abstract :
This brief presents an efficient method for synthesizing cascaded sigma-delta modulators implemented with continuous-time circuits. It is based on the direct synthesis of the whole cascaded architecture in the continuous-time domain instead of using a discrete-to-continuous time transformation as has been done in previous approaches. In addition to placing the zeroes of the loop filter in an optimum way, the proposed methodology leads to more efficient architectures in terms of circuitry complexity, power consumption and robustness with respect to circuit errors
Keywords :
cascade networks; continuous time filters; high level synthesis; sigma-delta modulation; analog-digital conversion; cascaded continuous-time sigma-delta modulators; continuous-time circuits; continuous-time domain; high-level synthesis methodology; loop filter; Circuit synthesis; Delay effects; Energy consumption; Filtering; Filters; High level synthesis; Logic; Microelectronics; Quantization; Transfer functions; Analog–digital conversion; continuous-time sigma–delta (;
fLanguage :
English
Journal_Title :
Circuits and Systems II: Express Briefs, IEEE Transactions on
Publisher :
ieee
ISSN :
1549-7747
Type :
jour
DOI :
10.1109/TCSII.2006.875310
Filename :
1683991
Link To Document :
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