A CMOS Highly Linear Hybrid Current/Voltage Controlled Oscillator for Wideband Polar Modulation

Yiwu Tang,Jianyun Hu,Jongmin Park,Jaehyouk Choi,Lincoln Leung,Chiewcharn Narathong,Kamal Sahota

IEEE Trans. on Circuits and Systems（2013）

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摘要

A highly linear oscillator is presented for wideband polar modulation. It has both a varactor voltage tuning input for frequency locking and temperature compensation of phase locked loop (PLL) as well as an inductive current tuning input for linear phase modulation of PLL. Implemented in 65 nm CMOS technology, it achieved a frequency tuning gain variation of less than ±2% over more than 32 MHz frequency range meeting the WCDMA polar modulation requirement. At 3.8 GHz and 3 MHz offset, its phase noise is -136.5 dBc/Hz with current consumption of 18 mA from 2.1 V supply.

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关键词

cmos analogue integrated circuits,varactors,linear phase modulation,voltage-controlled oscillators,current consumption,size 65 nm,temperature compensation,varactor voltage tuning input,phase locked loop,frequency tuning gain variation,pll,cmos highly linear hybrid current-voltage controlled oscillator,circuit tuning,microwave oscillators,wideband polar modulation,voltage 2.1 v,linear tuning,phase locked loops,inductive current tuning input,integrated circuit noise,code division multiple access,frequency locking,phase modulation,inductive tuning,phase noise,compensation,microwave integrated circuits,wcdma polar modulation requirement,current 18 ma,current controlled oscillator

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