[SI-LIST] Re: DC-DC converter Vs Signal Integrity

  • From: Faraydon Pakbaz <pakbazf@xxxxxxxxxx>
  • To: istvan.novak@xxxxxxxxxxx
  • Date: Mon, 30 Apr 2012 12:00:45 -0400

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Hi Istvan;

Is this behavior common to all types of DC-DC converters (i.e. Buck, Bo=
ost,
etc) Topology? Is there any reference
that I can find to discuss these situations? Thanks

Regards;

Don Pakbaz




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  |04/30/2012 09:28 AM                                                 =
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  |[SI-LIST] Re: DC-DC converter Vs Signal Integrity                   =
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Hi Bala,

DC-DC converters have a tendency to produce high-frequency ringing on
the main switching waveform edges, which can couple to nearby signal
traces. It can affect any signal, not only reset.  You need to select
your converters carefully so that they do not produce too much noise an=
d
make sure there is no sensitive signal running too close to the
converter.  There are no specifications or generic rules that would wor=
k
for many situations; you need to look at this on a case-by-case basis.

Regards,

Istvan Novak
Oracle

On 4/30/2012 3:31 AM, bala wrote:
> Hi Experts,
> Does DC-DC converter noise creates any signal integrity problems othe=
r
than
> normal power integirty issues?
>
> Especially,does it affect 'reset' signals.Please explain more if anyo=
ne
> came across such situation.
>


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