Spread-Spectrum Clock Generator for Serial ATA with Multi-Bit Sigma-Delta Modulator-Controlled Fractional PLL. - Masaru Kokubo; Takashi Kawamoto; Takashi Oshima; Takayuki Noto; Masato Suzuki; Shigeyuki Suzuki; Takashi Hayasaka; Tomoaki Takahashi; Jun Kasai (IEICE Trans. Electron., 2006)