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A very low-power quadrature VCO with back-gate coupling

被引：107
作者：
Kim, HR [1 ]
Cha, CY
Oh, SM
Yang, MS
Lee, SG
机构：
[1] Informat & Commun Univ, Taejon 305714, South Korea
[2] Informat & Commun Univ, Taejon 305714, South Korea
[3] Samsung Electromech, Gyeonggi 442743, South Korea
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2004年 / 39卷 / 06期
关键词：
back-gate coupling; CMOS; low power; quadrature; voltage-controlled oscillator (VCO);
D O I：
10.1109/JSSC.2004.827798
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new quadrature voltage-controlled oscillator (QVCO) topology is proposed. where the hack-gates of the core transistors are used as coupling terminals. The use of back-gates reduces the power dissipation and removes the additional noise contributions compare to the conventional coupling transistor based topology. The advantages of the proposed QVCO topology in comparison with prior works are exploited based on simulation. A QVCO based on the proposed topology with additional design ideas has been implemented using a 6.18-mum triple-well technology for I GHz-band operation, and measurement shows the phase noise of - 120 dBc/Hz at 1-MHz offset with output power of 2.5 dBm, while dissipating only 3 mA for,the whole QVCO from 1.8-V supply.
引用
收藏
页码：952 / 955
页数：4
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