3.3V 35mW Second-Order Three-Bit Quadrature Band-Pass ΔΣ Modulator for Digital Radio(Analog Signal Processing)

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概要

• 論文の詳細を見る

• Delta-sigma modulators (DSMs) are commonly use in high-resolution analog-to-digital converters, and band-pass delta-sigma modulators have recently been used to convert IF signals into digital signals. In particular, a quadrature band-pass delta-sigma modulator can achieve a lower total order, higher signal-to-noise ratio (SNR), and higher bandwidth when compared with conventional band-pass modulators. The current paper proposes a second-order three-bit quadrature band-pass delta-sigma modulator that can achieve a lower power consumption and better performance with a similar die size to a conventional fourth-order quadrature band-pass delta-sigma modulator (QBPDSM). The proposed system is integrated using CMOS 0.35μm, double-poly, four-metal technology. The system operates at 13MHz and can digitize a 200kHz bandwidth signal centered at 4.875MHz with an SNR of 85dB. The power consumption is 35mW at 3.3V and 38mW at 5V, and the die size is 2 × 1.9mm^2.

• 社団法人電子情報通信学会の論文
• 2003-12-01

著者

• SHIN Jang-Kyoo

  School of Electronic and Electrical Engineering, Kyungpook National University

• LEE Jong-Hyun

  School of Electronic and Electrical Engineering, Kyungpook National University

• CHOI Pyung

  School of Electronic and Electrical Engineering, Kyungpook National University

• LIM Geunbae

  Department of Mechanical Engineering, Pohang University of Science and Technology

• OH Hack-Soo

  School of Electronic and Electrical Engineering at Kyungpook National University

• WOO Chang-Gene

  School of Electronic and Electrical Engineering at Kyungpook National University

• LIM Geunbae

  Research Engineer of Samsung Advanced Institute of Technology

• Choi P

  Kyungpook National Univ. Daegu Kor

• Choi P

  Kyungpook National Univ. Taegu Kor

• Lee Jong-hyun

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Shin Jang-kyoo

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Shin Jang-kyoo

  Department Of Electrical And Electronic Engineering Toyohashi University Of Technology:school Of Ele

• Shin Jang-kyoo

  Department Of Electronics Kyungpook National University

• Choi Pyung

  School Of Electronic & Electrical Eng. Kyungpook National University

• Lim Geunbae

  Department Of Mechanical Engineering Pohang University Of Science And Technology

• Lee Jong-hyun

  Bio-chip Project Team Samsung Advanced Institute Of Technology

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