Voltage-controlled ring oscillator for harmonic frequency generation

被引：0

作者：

Mal, Surajit ^{[1
]}

Mal, Ashis Kumar ^{[1
]}

Ghosh, Sumalya ^{[1
]}

机构：

[1] Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur

来源：

Advances in Intelligent Systems and Computing | 2015年 / 343卷

关键词：

Frequency stability of ring oscillator; Ring oscillator; Transmission gate;

D O I：

10.1007/978-81-322-2268-2_30

中图分类号：

TN752 [振荡器];

学科分类号：

摘要：

In this paper, a voltage-controlled-based ring oscillator is proposed to generate different frequencies. Frequency of a ring oscillator depends on two factors: number of delay stages (length) in the ring and number of delay stages of the inverters, which can be controlled by a set of control voltages. In the proposed design of voltagecontrolled ring oscillator, multiplexers are employed to control either length of the chain (N) or control voltage of the inverters or both to vary the delay hence output frequency. Three different types of pseudo NMOS/PMOS/NMOS with PMOS inverters-based ring oscillators are studied to generate harmonic such as frequencies. Simulation carried out in UMC 180 nm CMOS technology shows promising results. © 2015, Springer India.

引用

页码：277 / 286

页数：9