A process and temperature compensated two-stage ring oscillator

被引：0

作者：

Lakshmikumar, K. R. ^{[1
]}

Mukundagiri, V. ^{[1
]}

Gierkink, S. L. J. ^{[1
]}

机构：

[1] Conexant Syst, Red Bank, NJ 07701 USA

来源：

PROCEEDINGS OF THE IEEE 2007 CUSTOM INTEGRATED CIRCUITS CONFERENCE | 2007年

关键词：

D O I：

暂无

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：

Local positive feedback in a delay element enables a ring oscillator with only two stages to oscillate and produce quadrature clocks. Routh-Hurwitz's criterion is applied to prove that such a structure can oscillate. An internally generated power supply from a constant-gm bias keeps the free running frequency to within +/- 5% from -40 to 125 degrees C over process variations. The 1.25GHz (oscillator in 0.13 mu m CMOS draws 3.4mA and has a phase noise of -88dBc/Hz at 1MHz offset.

引用

页码：691 / 694

页数：4

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