A low-noise, 900-MHz VCO in 0.6- mu;m CMOS. Park, C. & Kim, B. IEEE Journal of Solid-State Circuits, 34(5):586–591, May, 1999. doi abstract bibtex This paper describes a low-noise, 900-MHz, voltage-controlled oscillator (VCO) fabricated in a 0.6-μm CMOS technology. The VCO consists of four-stage fully differential delay cells performing full switching. It utilizes dual-delay path techniques to achieve high oscillation frequency and obtain a wide tuning range. The VCO operates at 750 MHz to 1.2 GHz, and the tuning range is as large as 50%. The measured results of the phase noise are -101 dBc/Hz at 100-kHz offset and -117 dBc/Hz at 600-kHz offset from the carrier frequency. This value is comparable to that of LC-based integrated oscillators. The oscillator consumes 10 mA from a 3.0-V power supply. A prototype frequency synthesizer with the VCO is also implemented in the same technology, and the measured phase noise of the synthesizer is -113 dSc/Hz at 100-kHz offset
@article{park_low-noise_1999,
title = {A low-noise, 900-{MHz} {VCO} in 0.6- mu;m {CMOS}},
volume = {34},
issn = {0018-9200},
doi = {10.1109/4.760367},
abstract = {This paper describes a low-noise, 900-MHz, voltage-controlled oscillator (VCO) fabricated in a 0.6-μm CMOS technology. The VCO consists of four-stage fully differential delay cells performing full switching. It utilizes dual-delay path techniques to achieve high oscillation frequency and obtain a wide tuning range. The VCO operates at 750 MHz to 1.2 GHz, and the tuning range is as large as 50\%. The measured results of the phase noise are -101 dBc/Hz at 100-kHz offset and -117 dBc/Hz at 600-kHz offset from the carrier frequency. This value is comparable to that of LC-based integrated oscillators. The oscillator consumes 10 mA from a 3.0-V power supply. A prototype frequency synthesizer with the VCO is also implemented in the same technology, and the measured phase noise of the synthesizer is -113 dSc/Hz at 100-kHz offset},
number = {5},
journal = {IEEE Journal of Solid-State Circuits},
author = {Park, Chan-Hong and Kim, Beomsup},
month = may,
year = {1999},
pages = {586--591}
}
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