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학술대회 Current Reuse Cross-Coupling CMOS VCO Using the CenterTapped Transformer in LC Tank for Digitally Controlled Oscillator
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저자
이영재, 현석봉, 김천수
발행일
200806
출처
Radio Frequency Integrated Circuits Symposium (RFIC) 2008, pp.549-552
DOI
https://dx.doi.org/10.1109/RFIC.2008.4561497
협약과제
07MH1300, 홈네트워크용 Cognitive 무선 시스템 개발, 김재영
초록
A current reuse cross-coupling transformer-based VCO with low phase noise and low power consumption was implemented in 0.13μm CMOS. The oscillation frequency was tuned from 46GHz to 6GHz (26% tuning range) using two different-sized varactor that adjusted fine and coarse tuning. The measured phase noise at 5.0GHz was -124dBc/Hz (1MHz offset) and maximum output power level was -5.5dBm. The 0.4×0.3mm2 core consumes very low power of 1.8mW for 1.2V and FOM has -196.2dB. © 2008 IEEE.
KSP 제안 키워드
CMOS VCO, Coupling transformer, Digitally controlled oscillator, LC tank, Low phase noise, Oscillation Frequency, Power Levels, Tuning Range, coarse tuning, cross-coupling, current reuse