Novel approximate square-root domain all-pass filter with application to multiphase oscillators


Ozoguz S. , ABDELRAHMAN T., ELWAKIL A.

ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, vol.46, no.3, pp.297-301, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 46 Issue: 3
  • Publication Date: 2006
  • Doi Number: 10.1007/s10470-006-1674-x
  • Title of Journal : ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
  • Page Numbers: pp.297-301

Abstract

A novel approximate square-root domain all-pass filter operating from a single 3.3 V supply is reported. The circuit requires a small number of transistors, with a bandwidth exceeding 100 MHz. Two-phase and three-phase oscillators based on cascaded sections of the proposed filter are constructed followed by a generic multiphase oscillator. Simulation results, using AMS 0.35 mu BiCMOS technology parameters, and experimental results are given.