[SI-LIST] Re: Ferrite Bead for power decoupling systems

  • From: steve weir <weirsi@xxxxxxxxxx>
  • To: Alvaro alkschbirs <alvaro.alkschbirs@xxxxxxxxx>
  • Date: Fri, 26 Nov 2010 09:49:22 -0800

The best design rule is to do one's homework. 

Steve.

Alvaro alkschbirs wrote:
> Hi gurus,
> Looking for Signal Integrity and EMI/EMC, What is the best design rule for
> power supply topology?
> Should I use ferrite beads in digital power supply pins (PHYs, digital clock
> oscillators, clock multipliers, microcontrollers)?
> Should I use different capacitor values for digital supply pins or it will
> increase the EMI (by anti-ressonant effects)?
>
> Thank you,
> Álvaro
>
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