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Conference Paper
Automatic Tuning Circuit for Gm-C Filters
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- Authors
- Young Ho Kim, Hyun Kyu Yu
- Issue Date
- 2005-12
- Citation
- International Conference on Electronics, Circuits and Systems (ICECS) 2005, pp.1-4
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper presents a CMOS on-chip automatic tuning circuit using phase lock loop (PLL) technique for continuous-time Gm-C filters. In the tuning circuit, to achieve the maximum tuning accuracy, the new VCO architecture that generates precisely fully differential clock swings and keeps the absolute oscillation in all operating condition was proposed. Measured results show that the designed automatic tuning circuit is suitable for the continuous-time Gm-C filter. The verified system is fabricated in a 0.18μm CMOS technology and consumes 2.78mW at a 1.8V supply voltage.
- KSP Keywords
- Automatic tuning, CMOS Technology, Continuous-Time, Fully differential, Gm-C filter, On-chip, Operating conditions, Supply voltage, Tuning circuit, lock loop(SOGI-FLL), phase lock loop