Results 251 to 260 of about 375,340 (303)

Compact RF CMOS 4-bit Digitally Controlled Oscillator

2019 26th IEEE International Conference on Electronics, Circuits and Systems (ICECS), 2019
Design of a reconfigurable compact digitally controlled oscillator (DCO is proposed in this paper. It uses a gyrator-C based-topology tunable active inductor (TAI) that achieves coarse frequency tuning due to a digitally controlled current source and a variable capacitance bank.
F. Haddad, W. Rahajandraibe, I Ghorbel
openaire   +1 more source

A digital-trim controlled on-chip RC oscillator

Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257), 2002
In this paper, a high-accuracy RC Oscillator (OSC) circuit is demonstrated using trimming control. The OSC uses a 7-bit binary-weighted resistor array as the trimming object. Using a 0.5 /spl mu/m CMOS process, the final output frequency can be achieved within 0.5% error while the original OSC without trimming has as much as 40% output variation due to
null Shuhuan Yu, null Yiming Chen, null Weidong Guo, null Xiaoqin Che, K.F. Smith, null Yong-Bin Kim   +5 more
openaire   +1 more source

A novel digitally controlled low noise ring oscillator

2008 IEEE International Symposium on Circuits and Systems (ISCAS), 2008
This paper presents a digitally controlled oscillator (DCO) with a novel architecture. The proposed DCO achieves low noise operation without the need for an LC resonator or specialized radio frequency (RF) process layers. Frequency tuning is achieved by controlling capacitive coupled charge injection.
Till Kuendiger, null Fang Chen, Leonard MacEachern, Samy Mahmoud   +3 more
openaire   +1 more source

Highly accurate digital sinusoidal oscillators using controlled rounding

1988., IEEE International Symposium on Circuits and Systems, 2003
The author proposes a novel type of digital oscillator and analyzes its properties using complex phasors. Bounds of amplitude deviation and phase jitter are discussed theoretically and confirmed by simulation. As an example, it is shown that both relative amplitude deviation and phase jitter in radians can be within 0.0005 for an initial amplitude of ...
openaire   +1 more source

A portable high-frequency digitally controlled oscillator (DCO)

Proceedings of the 23rd ACM international conference on Great lakes symposium on VLSI, 2013
A novel digitally-controlled oscillator (DCO) is reported. Utilizing a new capacitive load, the new DCO is capable of producing much higher output frequencies than existing DCOs. All other components are fully digital and modular, allowing portability to any CMOS process and customization for different applications. At the heart of the DCO is a digital
openaire   +1 more source

A Low-Power Digitally Controlled Ring Oscillator Design with IMOS Varactor Tuning Concept

Journal of The Institution of Engineers (India) Series B, 2021
M. Kumar
semanticscholar   +1 more source

A CMOS based low power digitally controlled oscillator design with MOS varactor

Analog Integrated Circuits and Signal Processing, 2019
S. Dabas, Manoj Kumar
semanticscholar   +1 more source

Digital Low-Dropout Regulator With Voltage-Controlled Oscillator Based Control

IEEE Transactions on Power Electronics, 2022
Jin-Gyu Kang, Jeongpyo Park, Min-Gyu Jeong, Changsik Yoo   +3 more
openaire   +1 more source

A 28-nm CMOS 40-GHz high-resolution digitally controlled oscillator for automotive radar applications

Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, 2017
Jianxiu Bai, Jaeyoung Lee, Jing Zhang, N. Rohani   +3 more
semanticscholar   +1 more source

Millimeter-Wave Digitally Controlled Oscillator

2016
Wanghua Wu, Robert Bogdan Staszewski, John R. Long   +2 more
openaire   +1 more source