Log-domain All-pass Filter-based Multiphase Sinusoidal Oscillators

@inproceedings{Prommee2013LogdomainAF,
  title={Log-domain All-pass Filter-based Multiphase Sinusoidal Oscillators},
  author={Pipat Prommee and Natapong Wongprommoon},
  year={2013}
}
Log-domain current-mode multiphase sinusoidal oscillators based on all-pass filters are presented in this paper. The first-order differential equation is used for obtaining inverting and non-inverting all-pass filters. The proposed oscillators are realized by all-pass filters whose natural frequency and stage gain can be electronically tuned by adjusting the bias currents. Each all pass filter contains 10 NPN transistors and a grounded capacitor. The validated BJT model which is used in SPICE… CONTINUE READING

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