標題: A Low Voltage All-Digital On-Chip Oscillator Using Relative Reference Modeling
作者: Yu, Chien-Ying
Yu, Jui-Yuan
Lee, Chen-Yi
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Digitally controlled oscillator (DCO);frequency compensation;low voltage;oscillators;process, voltage, temperature (PVT) variations
公開日期: 1-九月-2012
摘要: "This paper presents a low voltage on-chip oscillator which can compensate process, voltage, and temperature (PVT) variation in an all-digital manner. The relative reference modeling applies a pair of ring oscillators as relative references and estimates period of the internal ring oscillator. The period estimation is parameterized by a second-order polynomial. Accordingly, the oscillator compensates frequency variations in a frequency division fashion. A 1-20 MHz adjustable oscillator is implemented in a 90-nm CMOS technology with 0.04 mm(2) area. The fabricated chips are robust to variations of supply voltage from 0.9 to 1.1 V and temperature range from 0 degrees C to 75 degrees C. The low supply voltage and the small area make it suitable for low-cost and low-power systems."
URI: http://hdl.handle.net/11536/16587
ISSN: 1063-8210
期刊: IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS
Volume: 20
Issue: 9
結束頁: 1615
顯示於類別:期刊論文


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  1. 000306518900006.pdf