A crystal-based digital ring oscillator

Author

Abdollahi, S.R. ; Fakhraei, S.M. ; Bakkaloglu, B. ; Kamarei, M.

Author_Institution

ECE Dept., Univ. of Tehran, Iran

fYear

2003

fDate

15-17 Dec. 2003

Firstpage

319

Lastpage

322

Abstract

A 0.16 mW, 2.3 Volt multi-channel digitally controlled oscillator (MDCO) core is designed in a 0.6 micron CMOS process and its prototype design is mapped on an Altera FPGA that can be used for clock recovery applications. This architecture is suitable for digital wireless and cable transceivers that use different bands for transmit and receive modes. As crystal-based-delay cells control its dominant propagation delay, we have obtained a reduced phase-noise in comparison to recently published analog-based DCOs.

Keywords

digital phase locked loops; phase noise; transceivers; voltage-controlled oscillators; 0.16 mW; 2.3 V; Altera FPGA; CMOS process; MDCO design; analog based DCOs; complementary metal oxide semiconductor; crystal based delay cells control; crystal based digital ring oscillator; digital cable transceivers; digital wireless transceivers; field programmable gate array; multichannel digitally controlled oscillator design; propagation delay; reduced phase noise; Communication system control; Field programmable gate arrays; Frequency; Linearity; Phase locked loops; Propagation delay; Ring oscillators; Switches; Very large scale integration; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Field-Programmable Technology (FPT), 2003. Proceedings. 2003 IEEE International Conference on

Print_ISBN

0-7803-8320-6

Type

conf

DOI

10.1109/FPT.2003.1275767

Filename

1275767