Junji Wadatsumi

Publication Activity (10 Years)

Years Active: 2008-2024
Publications (10 Years): 6

Top Topics

Storage Systems

Top Venues

IEEE J. Solid State Circuits

IEICE Trans. Fundam. Electron. Commun. Comput. Sci.

Publications

Fumihiko Tachibana, Huy Cu Ngo, Go Urakawa, Takashi Toi, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Junji Wadatsumi, Hiroyuki Kobayashi, Jun Deguchi
A Mueller-Müller CDR with False-Lock-Aware Locking Scheme for a 56-Gb/s ADC-Based PAM4 Transceiver. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 107 (5) (2024)
Fumihiko Tachibana, Huy Cu Ngo, Go Urakawa, Takashi Toi, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Junji Wadatsumi, Hiroyuki Kobayashi, Jun Deguchi
A 56-Gb/s PAM4 Transceiver with False-Lock-Aware Locking Scheme for Mueller-Müller CDR. ESSCIRC (2022)
Takashi Toi, Junji Wadatsumi, Hiroyuki Kobayashi, Yutaka Shimizu, Yuji Satoh, Makoto Morimoto, Rui Ito, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Go Urakawa, Jun Deguchi, Ryuichi Fujimoto
A 25.6-Gb/s Interface Employing PAM-4-Based Four-Channel Multiplexing and Cascaded Clock and Data Recovery Circuits in Ring Topology for High-Bandwidth and Large-Capacity Storage Systems. IEEE J. Solid State Circuits 57 (5) (2022)
Yuta Tsubouchi, Daisuke Miyashita, Takashi Toi, Yuji Satoh, Fumihiko Tachibana, Junji Wadatsumi, Makoto Morimoto, Ryuichi Fujimoto, Jun Deguchi
A 12.8-Gb/s Daisy Chain-Based Downlink I/F Employing Spectrally Compressed Multi-Band Multiplexing for High-Bandwidth, Large-Capacity Storage Systems. IEEE J. Solid State Circuits 54 (4) (2019)
Takashi Toi, Junji Wadatsumi, Hiroyuki Kobayashi, Yutaka Shimizu, Yuji Satoh, Makoto Morimoto, Rui Ito, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Go Urakawa, Jun Deguchi
A 25.6Gb/s Uplink-Downlink Interface Employing PAM-4-Based 4-Channel Multiplexing and Cascaded CDR Circuits in Ring Topology for High-Bandwidth and Large-Capacity Storage Systems. ISSCC (2019)
Yuta Tsubouchi, Daisuke Miyashita, Yuji Satoh, Takashi Toi, Fumihiko Tachibana, Makoto Morimoto, Junji Wadatsumi, Jun Deguchi
A 12.8 GB/S Daisy Chain-Based Downlink I/F Employing Spectrally Compressed Multi-Band Multiplexing for High-Bandwidth and Large-Capacity Storage Systems. VLSI Circuits (2018)
Konosuke Watanabe, Kenichiro Yoshii, Nobuhiro Kondo, Ken-ichi Maeda, Toshio Fujisawa, Junji Wadatsumi, Daisuke Miyashita, Shouhei Kousai, Yasuo Unekawa, Shinsuke Fujii, Takuma Aoyama, Takayuki Tamura, Atsushi Kunimatsu, Yukihito Oowaki
19.3 66.3KIOPS-random-read 690MB/s-sequential-read universal Flash storage device controller with unified memory extension. ISSCC (2014)
Shouhei Kousai, Kohei Onizuka, Junji Wadatsumi, Takashi Yamaguchi, Yasuhiko Kuriyama, Masami Nagaoka
Polar Antenna Impedance Detection and Tuning for Efficiency Improvement in a 3G/4G CMOS Power Amplifier. IEEE J. Solid State Circuits 49 (12) (2014)
Shouhei Kousai, Daisuke Miyashita, Junji Wadatsumi, Rui Ito, Takahiro Sekiguchi, Mototsugu Hamada, Kenichi Okada
A Low-Noise and Highly-Linear Transmitter with Envelope Injection Pre-Power Amplifier for Multi-Mode Radio. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2011)
Jun Deguchi, Daisuke Miyashita, Yosuke Ogasawara, Gaku Takemura, Masaomi Iwanaga, Kenichi Sami, Rui Ito, Junji Wadatsumi, Yuki Tsuda, Shoko Oda, Shunji Kawaguchi, Nobuyuki Itoh, Mototsugu Hamada
A Fully Integrated 2 ˟ 1 Dual-Band Direct-Conversion Mobile WiMAX Transceiver With Dual-Mode Fractional Divider and Noise-Shaping Transimpedance Amplifier in 65 nm CMOS. IEEE J. Solid State Circuits 45 (12) (2010)
Jun Deguchi, Daisuke Miyashita, Yosuke Ogasawara, Gaku Takemura, Masaomi Iwanaga, Kenichi Sami, Rui Ito, Junji Wadatsumi, Yuki Tsuda, Shoko Oda, Shunji Kawaguchi, Nobuyuki Itoh, Mototsugu Hamada
A fully integrated 2×1 dual-band direct-conversion transceiver with dual-mode fractional divider and noise-shaping TIA for mobile WiMAX SoC in 65nm CMOS. ISSCC (2010)
Shouhei Kousai, Daisuke Miyashita, Junji Wadatsumi, Asuka Maki, Takahiro Sekiguchi, Rui Ito, Mototsugu Hamada
A 1.2V 0.2-to-6.3GHz Transceiver with Less Than -29.5dB EVM@-3dBm and a Choke/Coil-Less Pre-Power Amplifier. ISSCC (2008)