A CMOS optical receiver with subtraction-based level shifter for high-definition digital audio interfaces

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This paper proposes a cost-effective CMOS optical receiver with a level shifter to reduce pulse width distortion and design complexity in high-definition digital audio interfaces. In this design, a level shifter is introduced at the receiver, in order to improve digital audio quality by threshold convergence. Measurement results demonstrate that the implemented optical receiver in a 0.25-μm CMOS technology can successfully reduce pulse width distortion within -2% and circuit complexity.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalAnalog Integrated Circuits and Signal Processing
Issue number3
Publication statusPublished - 2007 Jun 1



  • CMOS
  • Level shifter
  • Optical receiver

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Hardware and Architecture
  • Signal Processing

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