Results 231 to 240 of about 375,340 (303)

Dual-cell structure digitally controlled oscillator with portability for clock generation applications.

Review of Scientific Instruments, 2019
This paper presents a dual-cell structure and cell-based design digitally controlled oscillator (DCO) for high-performance clock generation applications.
D. Sheng, Chun-Wei Lin, Ying-Chen Shih, Yun-An Yang   +3 more
semanticscholar   +1 more source

A Wideband, Low-Noise, and High-Resolution Digitally-Controlled Oscillator for SDR Applications

Asia-Pacific Microwave Conference, 2018
An integrated wide tuning range, low phase noise and high frequency resolution digitally controlled oscillator (DCO) in 90 nm CMOS technology for software-defined radio (SDR) frequency synthesizers is presented.
Chun-Ming Lin, Kun-Yao Kao, Kun-You Lin
semanticscholar   +1 more source

Digitally controlled oscillator with variable capacitive loading

2016 International Conference on Communication and Signal Processing (ICCSP), 2016
A Digitally controlled oscillator (DCO) designed with digital programming using binary coded capacitor load is presented. The Digitally Controlled Oscillator is basically designed based on the ring oscillator, where delay of the ring oscillator is controlled digitally. The delay cell is implemented to synthesize digital input. The oscillation frequency
Milind More, Prakash Apte
openaire   +1 more source

Digitally-Controlled Ring Oscillator for Wide Tuning Range Applications

Radioelectronics and Communications Systems, 2020
In this paper, two digitally-controlled ring oscillators (DROs) with similar structure but different constructive cells have been proposed. These proposed DROs include of 5 stages, and each stage contains 10 parallel delay cells. In addition, each stage has fine and coarse parts for adjusting the output frequency.
Shirin Askari, Mohsen Saneei
openaire   +2 more sources

Design of a wideband digitally controlled oscillator

2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT), 2014
This paper presents a wide-band digitally controlled oscillator (DCO) applied in all digital phase locked loop (ADPLL) of which the tuning range is 3GHz–5.3GHz. Capacitor tank of the oscillator contains 3 major arrays: coarse tuning bank, medium tuning bank and fine tuning bank (including fractional tuning capacitors), which are all formed by varactors.
Junhui Xiang, Lei Ma, Linghao Zhu, Hao Min   +3 more
openaire   +1 more source

Design of LC-Tank Digitally Controlled Oscillator with Variable Capacitor

2018 4th International Conference for Convergence in Technology (I2CT), 2018
This paper proposes a 6-bit LC tuned digitally Controlled Oscillator (DCO) based on low-power and low-phase-noise. In this proposed design NMOS varactor weighing were implemented.
P. Solanki, R. Gurjar, D. Mishra
semanticscholar   +1 more source

A novel power gated digitally controlled oscillator

2011 International Conference on Energy Aware Computing, 2011
In this paper a novel power gated digitally controlled oscillator (DCO) is presented. The DCO is suitable for integration in various systems such as clock generation circuits, clock and data recovery, and clocking schemes for high speed links. Simulations of the proposed DCO on 65nm TSMC technology show frequency range of 2.5 GHz to 6.8 GHz across all ...
Amr M. Lotfy, Maged Ghoneima, Mohamed Abdel-Moneum   +2 more
openaire   +1 more source

A giga-hertz CMOS digital controlled oscillator

ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2002
This paper presents a simple digital controlled oscillator. The new oscillator is specially designed for low cost RF CMOS communication circuits. A 6-bit R-2R DAC controls the oscillating frequency from 700 MHz to 1500 MHz.
null Lai-Kan Leung, null Cheong-Fat Chan, null Oliver Chiu-Sing Choy   +2 more
openaire   +1 more source

A Digitally Controlled Oscillator for ADPLL Application

Applied Mechanics and Materials, 2012
In order to solve the defects in performance for analog RF circuit in deep submicron process, this paper discusses a new type of LC oscillators(Digitally Controlled Oscillator), which uses digital RF method to achieve the technology requirements of wireless communication.
Xiu Long Wu, Fa Niu Wang, Zhi Ting Lin, Jun Ning Chen   +3 more
openaire   +1 more source

Multiphase sinusoidal oscillator with digital control

2010 International Conference on Power, Control and Embedded Systems, 2010
Adigitally controlledmultiphasesinusoidal oscillator (DCMSO) circuit employingdigitally controlled current conveyors (DCCCII) and grounded capacitors is presented. In the proposed circuit, voltage-mode inverting first-order low-pass sections are utilized to arrive at a circuit capable of producing multiphase sinusoidal waveforms.
openaire   +1 more source