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《Journal of Zhejiang University(Engineering Science)》 2017-01
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Design of chip-level clock system using frequency tunable standing-wave oscillators

ZHANG Wei;HU You-de;ZHENG Li-rong;School of Information Science and Technology,Fudan University;  
A new frequency tunable standing-wave oscillator architecture using inversion mode MOSFET(IMOS)as varactors was introduced.The frequency tuning range and power of oscillator were simulated when varactors were placed in lumped mode and distributed mode.In 65 nm technology,the simulation results showed that lumped mode had wider tuning range than the distributed mode with a little more power dissipation,and the tuning range achieved 20%.New chip-level clock systems were designed for global synchronous chip and global asynchronous local synchronous chip using frequency tunable standingwave oscillator with lumped varactors.Simulation results of different process voltage temperature(PVT)settings show that these clock systems can distribute high frequency clock signal with high reliability.
【Fund】: 上海科委资助项目(14510711500;15511108100)
【CateGory Index】: TN752;TN402
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