Abstract | ||
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A novel low power hybrid (Active-Passive) loop filter using the single amplifier biquad (SAB) filter is presented. This new hybrid loop filter saves power consumption by reducing the number of active elements in the continuous-time sigma-delta modulator. Also, the core biquad filter allows the loop filter of a high-order modulator to be implemented by cascading low-order biquad sections, considerably easing the design and implementation of the high-order continuous-time sigma-delta modulator. The proposed loop filter is a general type of hybrid filter which could be used for the both high and low oversampling ratios (OSRs). Experiment on a 5th-order low pass continuous-time sigma-delta modulator with a bandwidth of 30MHz is conducted successfully and the results are presented. |
Year | DOI | Venue |
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2009 | 10.1109/ISCAS.2009.5118462 | ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5 |
Keywords | Field | DocType |
hybrid filter, biquad filter, continuous-time, sigma-delta modulator, Oversampling ratio | Digital biquad filter,Active filter,Control theory,Computer science,High-pass filter,Electronic engineering,Low-pass filter,All-pass filter,Voltage-controlled filter,Filter design,Butterworth filter | Conference |
Citations | PageRank | References |
1 | 0.59 | 3 |
Authors | ||
2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Ramin Zanbaghi | 1 | 19 | 5.18 |
Terri S. Fiez | 2 | 167 | 47.25 |