Design of CMOS analog and digital phase-locked loops based on resonant VCO

Author

Frankiewicz, Maciej ; Golda, Adam ; Kos, Andrzej

Author_Institution

Dept. of Electron., AGH Univ. of Sci. & Technol., Kraków, Poland

fYear

2010

Firstpage

247

Lastpage

250

Abstract

This paper deals with the comparison of the analog and digital phase-locked loops that use identical LC VCO. Both circuits were designed and simulated in CMOS AMS 0.35 μm (3.3 V) technology using full-custom technique. The centre frequency of the oscillator is about 1.1 GHz. The analog loop consists of the Gilbert multiplying phase detector and active low-pass filter while digital one is built of D flip-flop phase detector and charge pump.

Keywords

CMOS analogue integrated circuits; CMOS digital integrated circuits; charge pump circuits; flip-flops; low-pass filters; phase detectors; phase locked loops; voltage-controlled oscillators; CMOS AMS technology; D flip-flop phase detector; Gilbert multiplying phase detector; LC VCO; analog phase locked loops design; charge pump; digital phase locked loops design; frequency 1.1 GHz; low-pass filter; oscillator frequency; resonant VCO; size 0.35 mum; voltage 3.3 V; Detectors; Phase frequency detector; Phase locked loops; Synchronization; Tuning; Voltage-controlled oscillators; CMOS; CP; DLL; Gilbert cell; PFD; PLL; VCO; full-custom design;

fLanguage

English

Publisher

ieee

Conference_Titel

Mixed Design of Integrated Circuits and Systems (MIXDES), 2010 Proceedings of the 17th International Conference

Conference_Location

Warsaw

Print_ISBN

978-1-4244-7011-2

Electronic_ISBN

978-83-928756-4-2

Type

conf

Filename

5551639