A spread-spectrum clock generator with triangular modulation

被引：85
|
作者：
Chang, HH [1 ]
Hua, IH
Liu, SI
机构：
[1] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 04期
关键词：
phase-locked loops (PLLs); spread spectrum;
D O I：
10.1109/JSSC.2003.809521
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a spread-spectrum clock generator (SSCG) with triangular modulation is presented. Only a divider and a programmable charge pump are added into a conventional clock generator to accomplish the spread-spectrum function. The proposed circuit has been fabricated in a 0.35-mum CMOS single-poly quadruple-metal process. The proposed SSCG can generate clocks of 66, 133, and 266 MHz with center spread ratios of 0.5%, 1%,1.5%, 2%, and 2.5%. Experimental results confirm the theoretical analyses.
引用
收藏
页码：673 / 676
页数：4
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