EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters. - Ibuki Mori; Yoshihisa Yamada; Santhos A. Wibowo; Masashi Kono; Haruo Kobayashi 001; Yukihiro Fujimura; Nobukazu Takai; Toshio Sugiyama; Isao Fukai; Norihisa Onishi; Ichiro Takeda; Jun-Ichi Matsuda (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2009)