Takafumi Yamaji

Publication Activity (10 Years)

Years Active: 1996-2013
Publications (10 Years): 0

Top Topics

Calibration Method

Frequency Domain

High Frequency Components

Top Venues

IEEE Trans. Circuits Syst. I Regul. Pap.

Publications

Junya Matsuno, Takafumi Yamaji, Masanori Furuta, Tetsuro Itakura
All-Digital Background Calibration Technique for Time-Interleaved ADC Using Pseudo Aliasing Signal. IEEE Trans. Circuits Syst. I Regul. Pap. (5) (2013)
Junya Matsuno, Takafumi Yamaji, Masanori Furuta, Tetsuro Itakura
All-digital background calibration for time-interleaved ADC using pseudo aliasing signal. ISCAS (2012)
Daisuke Miyashita, Kenichi Agawa, Hirotsugu Kajihara, Kenichi Sami, Masaomi Iwanaga, Yosuke Ogasawara, Tomohiko Ito, Daisuke Kurose, Naotaka Koide, Toru Hashimoto, Hiroki Sakurai, Takafumi Yamaji, Takashi Kurihara, Kazumi Sato, Ichiro Seto, Hiroshi Yoshida, Ryuichi Fujimoto, Yasuo Unekawa
A -70dBm-sensitivity 522Mbps 0.19nJ/bit-TX 0.43nJ/bit-RX transceiver for TransferJet™ SoC in 65nm CMOS. VLSIC (2012)
Takafumi Yamaji, Hiroshi Tanimoto, Junya Matsuno, Tetsuro Itakura
Harmonic Signal Rejection Schemes of Polyphase Downconverters. IEEE Trans. Circuits Syst. I Regul. Pap. (10) (2011)
Akihide Sai, Takafumi Yamaji, Tetsuro Itakura
A 570fsrms integrated-jitter ring-VCO-based 1.21GHz PLL with hybrid loop. ISSCC (2011)
Takafumi Yamaji, Takeshi Ueno, Tetsuro Itakura
A Direct Conversion Receiver Adopting Balanced Three-Phase Analog System. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2010)
Tomohiko Ito, Daisuke Kurose, Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
55-mW, 1.2-V, 12-bit, 100-MSPS Pipeline ADCs for Wireless Receivers. IEICE Trans. Electron. (6) (2008)
Masanori Furuta, Takafumi Yamaji, Takeshi Ueno, Tetsuro Itakura
An area-efficient sampling rate converter using negative feedback technique. ISCAS (2008)
Akihide Sai, Daisuke Kurose, Takafumi Yamaji, Tetsuro Itakura
A Low-Power Low-Noise Clock Signal Generator for Next-Generation Mobile Wireless Terminals. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2008)
Takeshi Ueno, Tomohiko Ito, Daisuke Kurose, Takafumi Yamaji, Tetsuro Itakura
1.2 V, 24 mW/ch, 10 bit, 80 MSample/s Pipelined A/D Converters. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2008)
Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
A 1.2-V, 12-bit, 200 MSample/s Current-Steering D/A Converter in 90-nm CMOS. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2007)
Takafumi Yamaji, Tetsuro Itakura, Rui Ito, Takeshi Ueno, Hidenori Okuni
Balanced 3-phase analog signal processing for radio communications. ISCAS (2006)
Daisuke Kurose, Tomohiko Ito, Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
55-mW 200-MSPS 10-bit pipeline ADCs for wireless receivers. IEEE J. Solid State Circuits 41 (7) (2006)
Tomohiko Ito, Daisuke Kurose, Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
Low-Power Design of 10-bit 80-MSPS Pipeline ADCs. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (7) (2006)
Takeshi Ueno, Tomohiko Ito, Daisuke Kurose, Takafumi Yamaji, Tetsuro Itakura
A 1.2 V, 24 mW/ch, 10 bit, 80 MSample/s Pipelined A/D Converters. CICC (2006)
Tomohiko Ito, Takeshi Ueno, Daisuke Kurose, Takafumi Yamaji, Tetsuro Itakura
A 10-bit, 200-MSPS, 105-mW pipeline A-to-D converter. IEICE Electron. Express 2 (15) (2005)
Hiroshi Tanimoto, Ryuta Ito, Takafumi Yamaji
Nonlinear Analysis of Bipolar Harmonic Mixer for Direct Conversion Receivers. IEICE Trans. Electron. (6) (2005)
Daisuke Kurose, Tomohiko Ito, Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
55-mW 200-MSPS 10-bit pipeline ADCs for wireless receivers. ESSCIRC (2005)
Takeshi Ueno, Takafumi Yamaji, Tetsuro Itakura
A 1.2-V, 12-bit, 200M sample/s current-steering D/A converter in 90-nm CMOS. CICC (2005)
Tomohiko Ito, Takafumi Yamaji, Daisuke Kurose, Tetsuro Itakura
Capacitance Mismatch Evaluation for Low-power Pipeline ADC Design. IEICE Electron. Express 1 (3) (2004)
Takafumi Yamaji, Daisuke Kurose, Osamu Watanabe, Shuichi Obayashi, Tetsuro Itakura
A four-input beam-forming downconverter for adaptive antennas. IEEE J. Solid State Circuits 38 (10) (2003)
Osamu Watanabe, Takafumi Yamaji, Tetsuro Itakura, Ichiro Hattori
A 2-GHz Down-Converter with 3-dB Bandwidth of 600 MHz Using LO Signal Suppressing Output Buffer. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (2) (2002)
Takeshi Ueno, Akira Yasuda, Takafumi Yamaji, Tetsuro Itakura
A fourth-order bandpass Δ-Σ modulator using second-order bandpass noise-shaping dynamic element matching. IEEE J. Solid State Circuits 37 (7) (2002)
Takafumi Yamaji, Nobuo Kanou, Tetsuro Itakura
A temperature-stable CMOS variable-gain amplifier with 80-dB linearly controlled gain range. IEEE J. Solid State Circuits 37 (5) (2002)
Takafumi Yamaji, Hiroshi Tanimoto, Hideyuki Kokatsu
An I/Q active balanced harmonic mixer with IM2 cancelers and a 45° phase shifter. IEEE J. Solid State Circuits 33 (12) (1998)
Shoji Otaka, Takafumi Yamaji, Ryuichi Fujimoto, Chikau Takahashi, Hiroshi Tanimoto
A low local input 1.9 GHz Si-bipolar quadrature modulator with no adjustment. IEEE J. Solid State Circuits 31 (1) (1996)