대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

적외선 수신모듈IC용 전치증폭기의 설계

Preamplier design for IR receiver IC

  • Hong, Young-Uk (KAIST(Korea Advanced Institude of Science and Technology)) ;
  • Ryu, Seung-Tak (KAIST(Korea Advanced Institude of Science and Technology)) ;
  • Choi, Bae-Gun (KAIST(Korea Advanced Institude of Science and Technology)) ;
  • Kim, Sang-Kyung (KAIST(Korea Advanced Institude of Science and Technology)) ;
  • Baik, Sung-Ho (KAIST(Korea Advanced Institude of Science and Technology)) ;
  • Cho, Gyu-Hyeong (KAIST(Korea Advanced Institude of Science and Technology))
  • 발행 : 2000.07.17
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초록

The application of IR(Infrared) communication is very wide and IR receiver has become a standard of home entertainment. A preamplifier with single 5V supply was designed for IR receiver IC. To operate at long distance, receiver IC should have high gain and low noise characteristic. To provide constant output signal magnitude, independent of transciever distance, gain limiting stage is needed. And to cut-off DC noise component effectively, large resistance and capacitance are required. Transimpedance type preamplifier, and diode limiting amplifier, and current limiting amplifier were designed. It is another function of current limiting amplifier that transforms single input signal to differential output signal. Using AMS BiCMOS model, both BJT version and MOS version was designed. Total power consumption is O.lmW, and IC size is $0.3mm^2$

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