TY  - JOUR
  - Zito, Domenico; Pepe, Domenico;
  - 2010
  - Unknown
  - International Journal of Circuit Theory ; Applications
  - LC-active VCO for CMOS RF transceivers
  - Validated
  - ()
  - 38
  - 1
  - 69
  - 84
  - A novel fully integrated CMOS LC tank VCO is presented. The LC tanks are implemented by exploiting the active circuit `boot-strapped inductor' (BSI), which behaves like a high-quality factor inductor. Particularly, the LC tanks have been implemented by introducing a new version of the CMOS BSI circuit, which provides better versatility and design reliability. In order to verify the effectiveness of such an approach, a case study for 5-6GHz direct-conversion multi-standard WLAN transceivers is presented. The VCO has been designed in a 0.35 mu m standard CMOS technology. The new BSI exhibits a high-quality factor (higher than 25 over the all frequency range) and provides a high selectivity without introducing a relevant excess of noise, for a better spectral purity and a lower phase noise (PN) of the VCO. The overall VCO circuit consumes 9 mW. The VCO produces an oscillation in the tuning range from 4.91 to 5.93 GHz (nearly equal to 19\%). The circuit exhibits a PN of -129 dBc/Hz at 1 MHz of frequency offset from the central frequency (5.4 GHz) and a FOM equal to 189.5 dBc/Hz at 100 kHz and 194.1 dBc/Hz at 1 MHz of frequency offset, respectively. Copyright (C) 2009 John Wiley \; Sons, Ltd.
  - 10.1002/cta.552
DA  - 2010/NaN
ER  - 

@article{V59430155,
   = {Zito, Domenico and  Pepe, Domenico and },
   = {2010},
   = {Unknown},
   = {International Journal of Circuit Theory ; Applications},
   = {LC-active VCO for CMOS RF transceivers},
   = {Validated},
   = {()},
   = {38},
   = {1},
  pages = {69--84},
   = {{A novel fully integrated CMOS LC tank VCO is presented. The LC tanks are implemented by exploiting the active circuit `boot-strapped inductor' (BSI), which behaves like a high-quality factor inductor. Particularly, the LC tanks have been implemented by introducing a new version of the CMOS BSI circuit, which provides better versatility and design reliability. In order to verify the effectiveness of such an approach, a case study for 5-6GHz direct-conversion multi-standard WLAN transceivers is presented. The VCO has been designed in a 0.35 mu m standard CMOS technology. The new BSI exhibits a high-quality factor (higher than 25 over the all frequency range) and provides a high selectivity without introducing a relevant excess of noise, for a better spectral purity and a lower phase noise (PN) of the VCO. The overall VCO circuit consumes 9 mW. The VCO produces an oscillation in the tuning range from 4.91 to 5.93 GHz (nearly equal to 19\%). The circuit exhibits a PN of -129 dBc/Hz at 1 MHz of frequency offset from the central frequency (5.4 GHz) and a FOM equal to 189.5 dBc/Hz at 100 kHz and 194.1 dBc/Hz at 1 MHz of frequency offset, respectively. Copyright (C) 2009 John Wiley \; Sons, Ltd.}},
   = {10.1002/cta.552},
  source = {IRIS}
}