Title :
A hybrid ΔΣ fractional-N frequency synthesizer
Author :
Riley, Tom ; Kostamovaara, Juha
Author_Institution :
Dept. of Electr. Eng., Univ. of Oulu, Finland
fDate :
4/1/2003 12:00:00 AM
Abstract :
Proposes a new frequency synthesizer architecture which uses a combination of known techniques. The architecture is evaluated by simulation and shown to reduce spurious content of existing fractional-N synthesizers. It also allows arbitrarily small channel spacing with existing fractional-N synthesizers.
Keywords :
frequency synthesizers; quantisation (signal); sigma-delta modulation; channel spacing; fractional-N frequency synthesizer; frequency synthesizer architecture; sigma-delta modulators; simulation; spurious content; Automatic frequency control; Bandwidth; Delay; Delta modulation; Frequency synthesizers; Noise reduction; Phase locked loops; Quantization; Sampling methods; Voltage-controlled oscillators;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
DOI :
10.1109/TCSII.2003.809710
