Design and simulation of a standing wave oscillator based PLL  

作　　者：Wei ZHANG You-de HU Li-rong ZHENG 

机构地区：[1]State Key Lab of ASIC & System,Fudan University [2]Pack Vinn Excellence Center,School of ICT,Royal Institute of Technology (KTH) Eletrum 229

出　　处：《Frontiers of Information Technology & Electronic Engineering》2016年第3期258-264,共7页信息与电子工程前沿（英文版）

摘　　要：A standing wave oscillator(SWO) is a perfect clock source which can be used to produce a high frequency clock signal with a low skew and high reliability. However, it is difficult to tune the SWO in a wide range of frequencies. We introduce a frequency tunable SWO which uses an inversion mode metal-oxide-semiconductor(IMOS) field-effect transistor as a varactor, and give the simulation results of the frequency tuning range and power dissipation. Based on the frequency tunable SWO, a new phase locked loop(PLL) architecture is presented. This PLL can be used not only as a clock source, but also as a clock distribution network to provide high quality clock signals. The PLL achieves an approximately 50% frequency tuning range when designed in Global Foundry 65 nm 1P9 M complementary metal-oxide-semiconductor(CMOS) technology, and can be used directly in a high performance multi-core microprocessor.A standing wave oscillator （SWO） is a perfect clock source which can be used to produce a high frequency clock signal with a low skew and high reliability. However, it is difficult to tune the SWO in a wide range of frequencies. We introduce a frequency tunable SWO which uses an inversion mode metal-oxide-semiconductor （IMOS） field-effect transistor as a varactor, and give the simulation results of the frequency tuning range and power dissipation. Based on the frequency tunable SWO, a new phase locked loop （PLL） architecture is presented. This PLL can be used not only as a clock source, but also as a clock distribution network to provide high quality clock signals. The PLL achieves an approximately 50% frequency tuning range when designed in Global Foundry 65 nm 1P9M complementary metal-oxide-semiconductor （CMOS） technology, and can be used directly in a high performance multi-core microprocessor.

关 键 词：Standing wave oscillator （SWO） Clock distribution Phase locked loop （PLL） VARACTOR 

分 类 号：TN752[电子电信—电路与系统]