ACTIF: a high-level power estimation tool for Analog Continuous-Time Filters

Lauwers, E.; Gielen, Georges

doi:10.1109/iccad.2000.896473

Cited by 7 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The approach differs from other software packages which only cover partial aspects of the synthesis route, quite often nonoriented to integrated realizations. In addition, the developed software package addresses most common circuit topologies, namely, ladder simulation and cascaded biquad realizations, outperforming other systems which only deal with biquad-based synthesis 8,9 . Finally, it should be noted that the optimization process realized at the implementation module may take into account, depending upon user choice, different metrics such as dynamic range, distortion behavior, mismatch tolerance, systematic deviations on time-and frequency responses, and power/area consumptions, thus providing a complete control on the filter performance under all possible configurations.…”

Section: Introductionmentioning

confidence: 99%

System-level optimization of baseband filters for communication applications

2003

View full text Add to dashboard Cite

In this paper, a design approach for the high-level synthesis of programmable continuous-time baseband filters able to achieve optimum trade-off among dynamic range, distortion behavior, mismatch tolerance and power/area consumptions is presented. The proposed approach relies on building programming circuit elements as arrays of switchable unit cells and defines the synthesis as a constrained optimization problem with both continuous and discrete variables, this last representing the number of enabled cells of the arrays at each configuration. The cost function under optimization is, then, defined as a weighted combination of performance indices which are estimated from macromodels of the circuit elements. The methodology has been implemented in MATLAB TM and C++, and covers all the classical approximation techniques for filters, most common circuit topologies (namely, ladder simulation and cascaded biquad realizations) and both transconductance-C (G m -C) and active-RC implementation approaches. The proposed synthesis strategy is illustrated with a programmable equal-ripple ladder G m -C filter for a multi-band power-line communication modem.

show abstract

Section: Introductionmentioning

confidence: 99%