NMOS/PMOS互补交叉耦合LC-tank振荡器振荡幅值表达式

2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC) Pub Date : 2019-06-01 DOI:10.1109/EDSSC.2019.8754367

Feng Zhang, Chunyu Ma, Ting Zhao

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引用次数: 0

摘要

振荡幅值是NMOS/PMOS互补交叉耦合LC-tank振荡器的关键因素，正确估计振荡幅值有利于振荡器的设计和选择过程。利用傅里叶变换求解Shichman-Hodge方程，导出了NMOS/PMOS互补交叉耦合LC-tank振荡器振荡幅度的一般表达式。它主要取决于电源电压和阈值电压。讨论了电源电压、晶体管尺寸和电感值的影响。振动幅值的计算与仿真结果吻合良好，误差小于5%。

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An expression for oscillation amplitude of NMOS/PMOS complementary cross-coupled LC-tank oscillator

Oscillation amplitude is a key factor for NMOS/PMOS complementary cross-coupled LC-tank oscillator, and its proper estimation is beneficial to design oscillator and select process. An ordinary expression for oscillation amplitude of NMOS/PMOS complementary cross-coupled LC-tank oscillator is derived by solving Shichman-Hodge equation using Fourier Transform. It mainly depends on power supply voltage and threshold voltage. The effects of power supply voltages, transistor’s sizes and inductor values are discussed. The calculation and Cadence simulation of oscillation amplitude show excellent agreement with error less than 5%.

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2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC)

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