A 6-GHz spread spectrum clock generation with EMI reduction of 30.2 dB for SATA-III applications

Hamed Alsuraisry, Jen Hao Cheng, Jian An Lin, Yen Hong Kuo, Jeng Han Tsai, Tian Wei Huang

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this letter, a 6-GHz spread spectrum clock generation for Serial AT Attachment Generation 3 (SATA—III) applications in 0.18-pm CMOS technology is presented. The 3rd-order loop filter is to reduce the ripple of control voltage of VCO and the loop bandwidth is 625 KHz. With the aid of second-order delta-sigma (ΔΣ) modulator and triangular profile counter, the division ratio of divider chain can be changed periodically. The modulation frequency is 37.04 KHz with upper bound of 19 for the triangular profile counter. The proposed circuit spreads 30-MHz frequency range from 5.97 to 6.0 GHz with an EMI reduction of 20.3 dB. The dc power consumption is 34 mW with a chip size of 0.54 mm2.

Original languageEnglish
Pages (from-to)622-624
Number of pages3
JournalMicrowave and Optical Technology Letters
Volume59
Issue number3
DOIs
Publication statusPublished - 2017 Mar 1

Fingerprint

Variable frequency oscillators
Frequency modulation
Voltage control
clocks
Modulators
Clocks
counters
Electric power utilization
Bandwidth
voltage controlled oscillators
Networks (circuits)
dividers
profiles
ripples
frequency modulation
division
attachment
modulators
CMOS
frequency ranges

Keywords

  • CMOS
  • EMI reduction
  • SATA
  • VCO
  • delta-sigma
  • spread spectrum

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

A 6-GHz spread spectrum clock generation with EMI reduction of 30.2 dB for SATA-III applications. / Alsuraisry, Hamed; Cheng, Jen Hao; Lin, Jian An; Kuo, Yen Hong; Tsai, Jeng Han; Huang, Tian Wei.

In: Microwave and Optical Technology Letters, Vol. 59, No. 3, 01.03.2017, p. 622-624.

Research output: Contribution to journalArticle

Alsuraisry, Hamed ; Cheng, Jen Hao ; Lin, Jian An ; Kuo, Yen Hong ; Tsai, Jeng Han ; Huang, Tian Wei. / A 6-GHz spread spectrum clock generation with EMI reduction of 30.2 dB for SATA-III applications. In: Microwave and Optical Technology Letters. 2017 ; Vol. 59, No. 3. pp. 622-624.
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