TY - GEN
T1 - A 6-11GHz multi-phase VCO design with active inductors
AU - Liao, Yu-Te
AU - Richard Shi, C. J.
PY - 2008/9/25
Y1 - 2008/9/25
N2 - A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.
AB - A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.
UR - http://www.scopus.com/inward/record.url?scp=52149119414&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2008.4541586
DO - 10.1109/ISCAS.2008.4541586
M3 - Conference contribution
AN - SCOPUS:52149119414
SN - 9781424416844
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 988
EP - 991
BT - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
T2 - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Y2 - 18 May 2008 through 21 May 2008
ER -