Title :
An 8 to 9 GHz LC-VCO and harmonic-suppressed CML divider with low supply voltage for FMCW synthesizer
Author :
Wei Wang ; Wei Li ; Ning Li ; Junyan Ren
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
An 8 GHz to 9 GHz voltage controlled oscillator (VCO) and harmonic-suppressed current mode logic (CML) divider with low supply voltage is proposed, analyzed, and implemented using 130-nm CMOS process. Compared with the conventional LC-VCO and CML divider, the proposed VCO presents an adjustable tuning range, while the divider presents a better harmonic suppression at low supply voltage. The simulated frequency tuning range of the VCO is from 7.91 GHz to 9.24 GHz when A1A0 is 11 and from 8.12 GHz to 8.75 GHz when A1A0 is 10. The simulation shows that the VCO achieves the phase noise of -106.2dBc/Hz at 1 MHz offset. The VCO and the CML divider consume 4 mW and1.36 mW respectively with 0.8 V supply.
Keywords :
CMOS analogue integrated circuits; MMIC oscillators; current-mode logic; frequency dividers; frequency synthesizers; harmonics suppression; integrated circuit design; voltage dividers; voltage-controlled oscillators; CMOS process; FMCW synthesizer; LC-VCO; current mode logic; frequency 7.91 GHz to 9.24 GHz; frequency modulated continuous wave synthesizer; harmonic-suppressed CML divider; power 1.36 mW; power 41 mW; size 130 nm; voltage 0.8 V; voltage controlled oscillator; Abstracts; CMOS integrated circuits; CMOS technology; Logic gates; Synthesizers; Voltage-controlled oscillators;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021251
