A 3.8-GHz highly linear LC-VCO without a varactor device

IEICE Electronics Express

Jaeho Jung¹  Hui Dong Lee¹  Kwangchun Lee¹ 

[1] Electronics and Telecommunications Research Institute

关键词: LC tank;    oscillator;    varactorless;    VCO;    VCO sensitivity;   

DOI  :  10.1587/elex.10.20130038

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)Cited-By(1)A LC-VCO topology without a varactor device has been proposed. The oscillator includes a variable capacitance block for a frequency tuning. The block consists of two transistors and two capacitors. The LC-VCO has been fabricated in a 130-nm CMOS technology. The measured results show operation frequencies of 3.73GHz to 3.94GHz and a phase noise of −119.1dBc/Hz at 1-MHz offset frequency. Power consumption is 5.9mA from a 1.2V supply.

【 授权许可】

Unknown