A 0.23 mW self-biased current-reuse CMOS LC-VCO based on novel interposed network

IEICE Electronics Express

Lin Xin¹  Deng Xiaoying¹  Zhu Mingcheng¹ 

[1] College of Information Engineering, Shenzhen University

关键词: LC-VCO;    current-reuse;    low power;    low phase noise;    voltage-diving factor;    interposed network;   

DOI  :  10.1587/elex.14.20170838

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

Based on the self-biased current-reuse complementary structure and interposed network, a low power LC voltage controlled oscillator (VCO) is presented, which can simultaneously achieve ultra-low power consumption and low phase noise. Firstly, thanks to the self-biased voltage-diving technique, the LC-VCO consumes ultra-low power consumption. Secondly, the novel interposed network can greatly improve the VCO’s phase noise performance. The proposed VCO is implemented in SMIC 180 nm CMOS process with a small area of 0.15 mm2, which exhibits phase noise of −118.3 dBc/Hz at 1 MHz offset from the 2.5 GHz carrier at 0.8 V supply voltage while the power dissipation is only 0.23 mW.

【 授权许可】

CC BY