Results 51 to 60 of about 2,447,169 (147)

A Design of 0.7-V 400-MHz Digitally-Controlled Oscillator [PDF]

open access: yes
We present a low-voltage digitally-controlled oscillator (DCO) with the third-order ΔΣ modulator utilized in the medical implant communication service (MICS) frequency band. An optimized DCO core operating in the subthreshold region is designed, based on
Kihara, Takao   +4 more
core   +1 more source

Multiphase Digitally Controlled Oscillator for Future 5G Phased Arrays in 90 nm CMOS

open access: yes, 2017
This paper reports a low noise Digitally Controlled Oscillator (DCO) with multiphase outputs, suitable for next generation phased arrays. The DCO core is implemented using an 8 stage Rotary Traveling Wave Oscillator (RTWO) topology.
Vigilante, Marco   +2 more
core   +1 more source

Design of a 3 GHz fine resolution LC DCO [PDF]

open access: yes, 2017
In this thesis, the design of a fine resolution LC digitally controlled oscillator (DCO) is introduced. Two NMOS varactor banks are used to achieve 12 bits medium and fine frequency tuning.
Zhao, Xuming, active 21st century
core   +1 more source

A 5.9 GHz LC-based digitally controlled oscillator with high frequency resolution using novel varactor pairs

open access: yes, 2009
This paper reports an LC-based digitally controlled oscillator (DCO) using novel varactor pairs. Proposed DCO has high frequency resolution with low phase noise in 5.9 GHz.
Hong-Joo Song   +7 more
core   +1 more source

Modelling and Implementation of an Accumulator-based ADPLL on a Virtex-5

open access: yes, 2012
In this work, we describe the implementation of an accumulator-based ADPLL on a Virtex 5. The ADPLL includes a Time-to-Digital Converter (TDC) that is based on two delay-lines and an oscillator. The resolution of the TDC is 1ns.
M. Deviato   +7 more
core   +1 more source

Linearity Enhancement Method for a Wide-Band Digitally Controlled Oscillator

open access: yes, 2021
A linearity enhancement technique for a wide-band digitally controlled oscillator (DCO) is presented in this paper. By adding a calibration resistor array to improve frequency-tuning characteristics, the DCO shows a highly linearized frequency tuning ...
Tang, Zhong   +4 more
core  

A Power-Scalable DCO for Multi-Standard GSM/WCDMA Frequency Synthesizers

open access: yes, 2014
A Digitally Controlled Oscillator (DCO) whose power consumption can be reconfigured while maintaining an almost constant phase-noise figure-of-merit (FoM). This is achieved by using either a single-switch-pair or a complementary (i.e., double-switch-pair)
Liscidini, Antonio   +4 more
core   +2 more sources

Millimeter-Wave CMOS Digitally Controlled Oscillators for Automotive Radars [PDF]

open access: yes, 2019
All-Digital-Phase-Locked-Loops (ADPLLs) are ideal for integrated circuit implementations and effectively generate frequency chirps for Frequency-Modulated-Continuous-Wave (FMCW) radar.
Taha, Iman
core   +1 more source

Low-Phase-Noise, High Switching Speed Digitally Controlled Ring Oscillator in 0.18 µm Complementary Metal Oxide Semiconductor

open access: yes, 2011
In this paper a 14-bit digitally controlled oscillator (DCO) with operating frequency up to 4.2 GHz in 0.18 µm complementary metal oxide semiconductor (CMOS) technology is presented.
Shashank Lingala   +4 more
core   +1 more source

An Interpolating Digitally Controlled Oscillator for a Wide-Range All-Digital PLL

open access: yes, 2019
A digitally controlled oscillator (DCO) for the all-digital phase-locked loop (ADPLL) with both the wide frequency range and the high maximum frequency was proposed by using the interpolation scheme at both the coarse and fine delay blocks of the DCO ...
Park, HJ, Choi, KH, Sim, JY, Shin, JB
core   +1 more source

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