A -90 dBc@ 10 kHz Phase Noise Fractional-N Frequency Synthesizer with Accurate Loop Bandwidth Control Circuit. - Shiro Dosho; Takashi Morie; Koji Okamoto; Yuji Yamada; Kazuaki Sogawa (IEICE Trans. Electron., 2006)

An Ultra-Wide Range Digitally Adaptive Control Phase Locked Loop with New 3-Phase Switched Capacitor Loop Filter. - Shiro Dosho; Naoshi Yanagisawa; Kazuaki Sogawa; Yuji Yamada; Takashi Morie (IEICE Trans. Electron., 2007)

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)