[SI-LIST] Re: Decoupling at 800Mhz
- From: Alexandre.AMEDEO@xxxxxxxxxxxxxxxxxx
- To: subramanian1683@xxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Thu, 22 May 2008 17:22:02 +0200
Hi,=20
I think the best approache is simulation.
You can use for example free tool from UltraCad.
Then you have to define the Target Impedance, and you can see if the
capacitors chosen are enough or not.
Regards,=20
Alexandre AMEDEO
-----Message d'origine-----
De : si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]De la part de Subramanian R
Envoy=E9 : jeudi 22 mai 2008 17:07
=C0 : si-list@xxxxxxxxxxxxx
Objet : [SI-LIST] Decoupling at 800Mhz
Hi All,
We are planning to use a processor running at 800 MHz.
I was just reading up on the decoupling methods.
The Processor PCB guidelines recommend using 1uF 0402 pack for high
frequency decoupling. But at 800 MHz, will not the cap/package =
inductance
dominate.
The guideline doesn't say anything about plane decoupling also.
Am I missing something? What are the best approaches for decoupling?
Any suggestions will be very useful.
Thank you in advance,
Regards
Mani
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=20
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