Power Bus Noise Analysis on IC using Wide-Band Ferrite Bead Model

광대역 페라이트 비드 모델을 이용한 IC 전원단의 잡음해석

  • Published : 2003.12.01


The SMT(Surface Mount Type) ferrite bead used to reduce the influx of power bus noise is modeled with parallel capacitor(C), series resistor(R) and series inductor(L). The simple equivalent circuit modeling doesn't agree with the measurement result. In this paper, we proposed the accurate equivalent circuit model of the ferrite bead at wide frequency range(50 MHz∼3 GHz) and analyzed the noise effect to the high speed IC(Integrate Circuit) with ferrite bead or not.



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