대한전자공학회논문지SD (Journal of the Institute of Electronics Engineers of Korea SD)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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버스트 광 신호 레벨 적응형 기준레벨 자동 발생회로

An Automatic Threshold Control Circuit Adaptive to Burst Optical signal Levels

  • 기현철 (원광대학교 전자공학과)
  • 발행 : 2003.12.01
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 첨두 검출기의 구조를 개선함으로써 정착시간(settling time)을 더욱 단축시킬 수 있는 적응형 기준레벨자동 발생회로를 제안했다. 제안한 기준레벨 자동 발생회로에 대해 비슷한 정착시간을 설정하였을 때에 오차전압비율이 기존 구조에 비해 절반 이하로 줄일 수 있어 정착시간을 상당량 개선할 수 있음을 해석을 통해 밝혔다. 아울러 상용 파운드리(foundry)를 이용하여 1.25G EPON 시스템용 버스트 모드기준레벨 자동 발생회로를 설계한 결과 동적 영역(dynamic range)이 40㏈인 입력신호에 대해 6㎱ 라는 매우 짧은 시간 이내에 기준 레벨을 생성해 내는 결과를 얻을 수 있었다.

In this paper, we proposed an adaptive ATC(Automatic Threshold Control) circuit with more decreased settling time by improving the structure of the peak detector. We showed that it could reduce a good deal of the settling time because it showed less than half the error voltage ratio that the ATC circuit with conventional structure showed in analysis. We also designed a burst-mode ATC circuit for the 1.25Gbps EPON system using a commercial foundry. It produced the reference levels in very short time, 6㎱ in 40 ㏈ input dynamic range.

키워드

참고문헌

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