Digital tuning of high-order high-Q continuous-time filters
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A digital tuning scheme for automatic tuning of high-order high-Q continuous-time filters is proposed. The scheme uses phase information for both centre frequency and Q tuning, and does not rely on the relation between the passband gain and Q factor. Digital control of frequency and Q tuning loops improves the stability by enabling only one loop at a given tuning cycle. High-order filter tuning is performed without separating individual sections, eliminating switches and their parasitics.
author list (cited authors)
Sumesaglam, T., & Karsilayan, A. I.
complete list of authors
Sumesaglam, T||Karsilayan, AI