A 20kHz Frequency Resolution DCO

摘要：

This paper reports a Digitally Controlled Oscillator (DCO) with 20kHz frequency resolution. This is the first DCO implementing capacitor delta tuning and Dynamic Element Matching (DEM) to suppress process variations and mismatches between small capacitor deltas. The DCO is fabricated in 0.13um CMOS IBM technology. The proposed DEM technique reduced the process variations and mismatches from 95％ to 33.5％ for the minimum capacitance step. The oscillator has a frequency tuning range from 108MHz to 133MHz with a centre frequency at 120.5MHz and forms part of an RF injection locked oscillator. The output frequency is covered by 8192 tuning steps. The measured frequency characteristics are provided in this paper. The DCO consumes 1.7mW power from a 1.185V voltage supply.

作者: Zhanjun Bai Ralph Mason

作者单位: Department of Electronics, Carleton University, Ottawa K1S 5B6, Canada

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 257-259

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）