A 200 MHz frequency-locked loop based on new frequency-to-voltage converters approach

Author

Djemouai, A. ; Sawan, M. ; Slamani, M.

Author_Institution

Dept. of Electr. & Comput. Eng., Ecole Polytech. de Montreal, Que., Canada

Volume

2

fYear

1999

fDate

36342

Firstpage

89

Abstract

In this paper, we propose a high frequency, fully integrated frequency-locked loop (FLL) design based on a new architecture of a CMOS frequency-to-voltage converter. The design is similar to a phase-locked loop (PLL) in the way that it generates an output signal that tracks an input reference signal, however, in this case the two signals are synchronized in frequency and not in phase. The frequency of the FLL output could be also controlled by an input voltage, therefore, it could be also used as an integrated high-precision voltage-controlled oscillator. The proposed FLL is very fast, operates over a wide frequency range and occupies a small integrated area compared to an equivalent PLL

Keywords

CMOS integrated circuits; VHF circuits; automatic frequency control; mixed analogue-digital integrated circuits; synchronisation; voltage-controlled oscillators; voltage-frequency convertors; 0.35 micron; 200 MHz; AFC; CMOS IC; RF IC; VHF; frequency synchronization; frequency-locked loop; frequency-to-voltage converter; integrated FLL design; integrated high-precision VCO; voltage-controlled oscillator; wide frequency range; Circuits; Frequency conversion; Frequency locked loops; Low pass filters; Phase frequency detector; Phase locked loops; Signal design; Signal generators; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-5471-0

Type

conf

DOI

10.1109/ISCAS.1999.780626

Filename

780626