An Accurate Automatic Tuning Scheme for High-Q Continuous-Time Bandpass Filters Based on Amplitude Comparison
نویسنده
چکیده
A new automatic tuning scheme for continuous-time high-Q-bandpass filters is presented. It is conducted by amplitude comparison at three frequencies generated by an on-chip frequency synthesizer. Theoretical analysis and experimental results are provided. Analysis shows the tuning method is suitable for bandpass filters with 10. A m second-order filter is designed to demonstrate the proposed tuning scheme. The test chip is fabricated in AMI 0.5m process. The measured frequency tuning error is 0.25%, and Q-tuning error is 3% for a 200-MHz filter with a desired Q of 28.6.
منابع مشابه
Automatic Tuning for Continuous - Time High Frequency Continuous - Time Bandpass Filters
Automatic Tuning for Continuous-Time High Frequency Continuous-Time Bandpass Filters. (December 2002) Hengsheng Liu, B.S., Huazhong University of Science and Technology; M.S., Chinese Academy of Science Chair of Advisory Committee: Dr. Aydin I. Karsilayan A novel automatic tuning scheme for continuous-time bandpass filters is presented. It is based on gain comparison at three different frequenc...
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