A 125-1250 MHz Process-Independent Adaptive Bandwidth Spread Spectrum Clock Generator With Digital Controlled Self-Calibration. - Tsuyoshi Ebuchi; Yoshihide Komatsu; Tatsuo Okamoto; Yukio Arima; Yuji Yamada; Kazuaki Sogawa; Kouji Okamoto; Takashi Morie; Takashi Hirata; Shiro Dosho; Takefumi Yoshikawa (IEEE J. Solid State Circuits, 2009)