Delta-Sigma Modulator Using a Resonant-Tunneling Diode Quantizer

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概要

• 論文の詳細を見る

• A novel delta-sigma modulator that utilizes a resonant-tunneling diode (RTD) quantizer is proposed and its operation is investigated by HSPICE simulations. In order to eliminate the signal-to-noise-and-distortion ratio (SINAD) degradation caused from the poor isolation of a single-stage quantizer (1SQ), a three-stage quantizer (35Q), which consists of three cascoded RTD quantizers, is introduced. At a sample rate of 10 Gsps (samples per a second) and a signal bandwidth of 40 MHz (oversampling ratio of 128), the modulator demonstrates a SINAD of 56 dB, which corresponds to the effective number of bits of 9.3.

• 社団法人電子情報通信学会の論文
• 2002-05-01

著者

• Fukuyama Hiroyuki

  Department Of Chemistry And Materials Science Tokyo Institute Of Technology

• Fukuyama Hiroyuki

  Ntt Photonics Laboratories Ntt Corporation

• Fukuyama Hiroyuki

  Ntt Photonics Laboratories

• Fukuyama H

  Ntt System Electrics Lab. Kanagawa Jpn

• SHIBATA Tsugumichi

  NTT Photonics Laboratories, NTT Corporation

• ENOKI Takatomo

  NTT Photonics Laboratories, NTT Corporation

• FUKUYAMA Hiroyuki

  Graduate School of Science and Engineering, Tokyo Institute of Technology

• Enoki Takatomo

  Ntt Photonics Laboratories

• Enoki T

  Panasonic Mobile Communications Co. Ltd Yokosuka‐shi Jpn

• Itoh Toshihiro

  Ntt Photonics Laboratories Ntt Corporation

• Fukuyama H

  Tokyo Inst. Technol. Tokyo Jpn

• MUTOH Miwa

  NTT Photonics Laboratories, NTT Corporation

• Itoh Toshihiro

  Ntt Photonics Laboratories Ntt Corporation:(present Address)ntt Electronics Corporation

• Mutoh Miwa

  Ntt Photonics Laboratories Ntt Corporation

• Shibata Tsugumichi

  Ntt Photonics Laboratories Ntt Corporation

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