A Behavioral Analysis of an Interpolation I]R Inter and Sigma Delta DAC for ADSL Applications

  • Kim, Sun-Hong (School of Electronics and Information Engineering, Chonbuk National University) ;
  • Son, Ju-Ho (School of Electronics and Information Engineering, Chonbuk National University) ;
  • Park, Seok-Woo (School of Electronics and Information Engineering, Chonbuk National University) ;
  • Kim, Dong-Yong (School of Electronics and Information Engineering, Chonbuk National University) ;
  • Yun, Chang-Hun (Division of Information and Communication Engineering, Woosuk University)
  • Published : 2002.07.01

Abstract

A transceiver for ADSL systems contains an interpolated combfilter, halfband filters, oversampling sigma delta modulator, a current steering DAC and an analog filler. The circuit complexity of the architecture makes it necessary to use behavioral models to determine the system features. For this reason, we need a specific behavioral simulation environment using the Matlab program. The Matlab is crucial for these circuits to be rapidly incorporated in larger systems, in particular in the context of mixed-signal-test schemes. Design trade-off among the blocks has also been discussed. The design methodology is based on behavioral design and CMOS process.

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