Title :
A digitally reconfigurable auto amplitude calibration method for wide tuning range VCO design
Author :
Zhang, Zhuo ; Li, Jun ; Sun, Yuanfeng ; Rhee, Woogeun ; Wang, ZhiHua
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A wide tuning range LC VCO with auto amplitude control is designed in 0.13-μm CMOS. Phase noise optimized design for the wide tuning range VCO is discussed and a PVT insensitive digitally reconfigurable auto amplitude calibration (AAC) circuit is used to stabilize the phase noise in the whole wide band. The proposed AAC circuit with a code estimated FSM provides faster operation to get the optimum state than the conventional one. Transistor-level simulations show that the proposed AAC method improves phase noise performance by more than 10dB..
Keywords :
CMOS integrated circuits; calibration; circuit tuning; phase noise; voltage-controlled oscillators; AAC circuit; CMOS; PVT insensitive digitally reconfigurable auto amplitude calibration circuit; automatic amplitude control; code estimated FSM; digitally reconfigurable auto amplitude calibration method; phase noise optimized design; size 0.13 mum; wide tuning range LC VCO; wide tuning range VCO design; Calibration; Equations; Mathematical model; Phase noise; Tuning; Voltage-controlled oscillators;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667344
