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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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This paper presents a digitally-controlled filter calibration technique for biquad RC filter using self oscillation. The biquad RC filter is converted to a fully-differential ring oscillator by changing its resistor connections, where the oscillation frequency reflects the cut-off frequency. The proposed calibration circuit measures the oscillation frequency by counting with a fixed higher-frequency clock and then tunes it to a desired frequency with a digital frequency-locked loop including a PI controller. Because the proposed circuit directly measures the cut-off frequency of the filter itself and calibrates it with the small area digital circuits, the area and the power consumption are much small compared with conventional works. When it is implemented in a 65nm CMOS process, the calibration circuit except the filter consumes the area of 80㎛ X 50㎛ and power consumption is 443㎂ at 1.2 V supply voltage.
목차
Abstract
1. 서론
2. 제안된 filter 교정 기법
3. 회로 설계
4. 측정 결과
5. 결론
감사의 글
참고문헌
저자소개
참고문헌 (4)
참고문헌 신청
1. [학술지(정기간행물)] - A. M. Durham / 1992 / Circuit Architectures for High Linearity Monolithic Continuous-Time Filtering / IEEE Transactions on Circuits and Systems 39 (9) : 651 ~ 657
2. [학술지(정기간행물)] - A. Vasilopoulos / 2006 / A Low-Power Wideband Reconfigurable Integrated Active-RC Filter with 73dB SFDR / IEEE J.Solid-State Circuits 41 (9) : 1997 ~ 2008
3. [학술지(정기간행물)] - H. Huang / 2001 / Design of Low-Voltage CMOS continuous-Time Filter with On-chip Automatic Tuning / IEEE J. Solid-State Circuits 36 (8) : 1168 ~ 1177
4. [학술대회논문] - L. Zou / 2008 / A 12th Order Active-RC Filter with Automatic Frequency Tuning for DVB Tuner Applications / IEEE Asian Solid-State Circuits Conference : 281 ~ 284
2. [학술지(정기간행물)] - A. Vasilopoulos / 2006 / A Low-Power Wideband Reconfigurable Integrated Active-RC Filter with 73dB SFDR / IEEE J.Solid-State Circuits 41 (9) : 1997 ~ 2008
3. [학술지(정기간행물)] - H. Huang / 2001 / Design of Low-Voltage CMOS continuous-Time Filter with On-chip Automatic Tuning / IEEE J. Solid-State Circuits 36 (8) : 1168 ~ 1177
4. [학술대회논문] - L. Zou / 2008 / A 12th Order Active-RC Filter with Automatic Frequency Tuning for DVB Tuner Applications / IEEE Asian Solid-State Circuits Conference : 281 ~ 284
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