Title :
Symphony-a sigma delta synthesizer [PLLs]
Author :
Young, J.P. ; Mulbrook, M.M.
Author_Institution :
Conexant, Reockwell-Collins, USA
Abstract :
Sigma delta techniques have had a significant impact on the integration and performance of A/D and D/A technology. Likewise this technique is expected to have a significant effect on synthesizers as well. This paper describes a sigma delta single loop PLL synthesizer that demonstrates enhanced performance by using this technique. The device is called "Symphony" and is the first low cost and highly integrated sigma delta synthesizer.
Keywords :
analogue-digital conversion; digital-analogue conversion; frequency synthesizers; sigma-delta modulation; A/D technology; D/A technology; sigma delta synthesizer; single loop PLL synthesizer; Bandwidth; Circuits; Costs; Delta-sigma modulation; Filters; Frequency conversion; Frequency synthesizers; Noise reduction; Phase locked loops; Phase noise;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2000. Digest of Papers. 2000 IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-6280-2
DOI :
10.1109/RFIC.2000.854408
