A 3 GHz spread-spectrum clock generator with a self-calibration technique

Chi Yang Chang, Cheng Liang Hung, Yu Chen Lin, Kuo Hsing Cheng

研究成果: 書貢獻/報告類型會議論文篇章同行評審

1 引文 斯高帕斯(Scopus)

摘要

A spread-spectrum clock generator (SSCG) with self-calibration circuit (SCC) is presented in this paper. By the use of self-calibration scheme, exploited the proposed linear circuit and a SCC, the gain of Kvco can be effectively reduced and the jitter performance is improved. Moreover, the proposed architecture provides an alternative technique for low Kvco instead of the commonly used methods for voltage-control oscillator (VCO) calibration. The SCC-based SSCG ensures phase locking under the process, voltage and temperature (PVT) variations. For spread-spectrum clocking, the digital MASH delta-sigma modulator and a 33-kHz triangular addressor is used. The proposed SSCG generates an output clock of 3 GHz and approximate 5000-ppm down spreading with a triangular-modulated shape. The SSCG has been designed in TSMC 0.18 μm CMOS technology. Operating at a 3-GHz clock rate, the peak-to-peak jitter of non spread-spectrum is 3.85 ps. The electromagnetic interference (EMI) reduction is larger than 20 dB with a triangular-modulated frequency of 3-2.985 GHz.

原文???core.languages.en_GB???
主出版物標題2011 IEEE 9th International New Circuits and Systems Conference, NEWCAS 2011
頁面177-180
頁數4
DOIs
出版狀態已出版 - 2011
事件2011 IEEE 9th International New Circuits and Systems Conference, NEWCAS 2011 - Bordeaux, France
持續時間: 26 6月 201129 6月 2011

出版系列

名字2011 IEEE 9th International New Circuits and Systems Conference, NEWCAS 2011

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???event.eventtypes.event.conference???2011 IEEE 9th International New Circuits and Systems Conference, NEWCAS 2011
國家/地區France
城市Bordeaux
期間26/06/1129/06/11

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