Digital Auto-Tuning for Center Frequency and Q-Factor of Gm-C Band-Pass Filter
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Q Factor
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This paper describes digital auto-tuning schemes for second-order Gm-C bandpass filters which are suitable for fine CMOS implementation. We propose a switched Gm-C analog filter and two digital tuning schemes: a center frequency tuning scheme using the phase information and a Q factor tuning scheme using the magnitude information. We present circuits, describe their operations, and present SPICE simulation results.
2012 ◽
Vol 490-495
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pp. 305-308
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2013 ◽
Vol 16
(3)
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pp. 211-217
2014 ◽
Vol 7
(6)
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pp. 655-660
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2014 ◽
Vol 665
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pp. 623-628
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2012 ◽
Vol 241-244
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pp. 1010-1013
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2019 ◽
pp. 758-764
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