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http://dx.doi.org/10.7471/ikeee.2013.17.4.537

A Low EMI Spread Spectrum Clock Generator Using TIE-Limited Frequency Modulation Technique  

Piao, Taiming (School of Electronic Engineering, Soongsil University)
Wee, Jae-Kyung (School of Electronic Engineering, Soongsil University)
Lee, Seongsoo (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of IKEEE / v.17, no.4, 2013 , pp. 537-543 More about this Journal
Abstract
This paper proposed a low EMI spread spectrum clock generator (SSCG) using discontinuous frequency modulation technique. The proposed SSCG is designed for triangular frequency modulation with high modulation depth. When the maximum time interval error (MTIE) of the SSCG is higher than given limit, the output frequency of SSCG is divided by two and used for reducing the time interval error (TIE). This discontinuous frequency modulation technique can effectively reduce the EMI within given limit. The simulated EMI of proposed SSCG was reduced by 18.5dB than that of conventional methods.
Keywords
electromagnetic interference; spread spectrum clock generator; maximum time interval error; triangular frequency modulation; discontinuous frequency modulation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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