Junji Wadatsumi

12 papers Journal 6Unranked 6
YearRankTypeTitle / Venue / Authors
2024 J jnl
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.
Fumihiko Tachibana, Huy Cu Ngo, Go Urakawa, Takashi Toi, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Junji Wadatsumi, Hiroyuki Kobayashi, Jun Deguchi
2022 J jnl
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
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
2022 — conf
A 56-Gb/s PAM4 Transceiver with False-Lock-Aware Locking Scheme for Mueller-Müller CDR.
ESSCIRC
Fumihiko Tachibana, Huy Cu Ngo, Go Urakawa, Takashi Toi, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Junji Wadatsumi, Hiroyuki Kobayashi, Jun Deguchi
2019 J jnl
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
Yuta Tsubouchi, Daisuke Miyashita, Takashi Toi, Yuji Satoh, Fumihiko Tachibana, Junji Wadatsumi, Makoto Morimoto, Ryuichi Fujimoto, Jun Deguchi
2019 — conf
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
Takashi Toi, Junji Wadatsumi, Hiroyuki Kobayashi, Yutaka Shimizu, Yuji Satoh, Makoto Morimoto, Rui Ito, Mitsuyuki Ashida, Yuta Tsubouchi, Mai Nozawa, Go Urakawa, Jun Deguchi
2018 — conf
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
Yuta Tsubouchi, Daisuke Miyashita, Yuji Satoh, Takashi Toi, Fumihiko Tachibana, Makoto Morimoto, Junji Wadatsumi, Jun Deguchi
2014 — conf
19.3 66.3KIOPS-random-read 690MB/s-sequential-read universal Flash storage device controller with unified memory extension.
ISSCC
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
2014 J jnl
Polar Antenna Impedance Detection and Tuning for Efficiency Improvement in a 3G/4G CMOS Power Amplifier.
IEEE J. Solid State Circuits
Shouhei Kousai, Kohei Onizuka, Junji Wadatsumi, Takashi Yamaguchi, Yasuhiko Kuriyama, Masami Nagaoka
2011 J jnl
A Low-Noise and Highly-Linear Transmitter with Envelope Injection Pre-Power Amplifier for Multi-Mode Radio.
IEICE Trans. Fundam. Electron. Commun. Comput. Sci.
Shouhei Kousai, Daisuke Miyashita, Junji Wadatsumi, Rui Ito, Takahiro Sekiguchi, Mototsugu Hamada, Kenichi Okada
2010 J jnl
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
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
2010 — conf
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
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
2008 — conf
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
Shouhei Kousai, Daisuke Miyashita, Junji Wadatsumi, Asuka Maki, Takahiro Sekiguchi, Rui Ito, Mototsugu Hamada