Novel fractional-N PLL frequency synthesizer with reduced phase error

Autor:	Yutaka Fukui, Shigeki Obote, Kouichi Syoubu, Kazutoshi Tsuda, Yasuaki Sumi
Rok vydání:	2002
Předmět:	Phase-locked loop Frequency synthesizer Frequency divider Physics Direct digital synthesizer PLL multibit Electronic engineering Phase frequency detector Phase detector Electronic mail
Zdroj:	Proceedings of APCCAS'96 - Asia Pacific Conference on Circuits and Systems.
DOI:	10.1109/apcas.1996.569215
Popis:	Conventionally, the division ratio of the programmable divider in the Phase Locked Loop (PLL) frequency synthesizer is an only integer. Therefore, it has been hoped to realize the fractional-N programmable divider which can divide not only an integer step but also a fractional step. In this paper, a new fractional-N programmable divider for the PLL frequency synthesizer is proposed. In this divider, the width of phase error pulse which phase detector produces in every period of reference frequency is decreased by introducing the new division ratio (N+1/2) besides N and (N+1).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1f2701e1a5805eeaea6166cfee84498d https://doi.org/10.1109/apcas.1996.569215 Zobrazit plný text záznamu