[SI-LIST] Re: FB for SPI bus
- From: bala <balaseven@xxxxxxxxx>
- To: Tayyab_Pathan@xxxxxxxxxxx
- Date: Thu, 30 Aug 2012 21:06:11 +0530
Yes,as steve said,why do you need bead for SPI...bead can be used to reduce
leakage current noise if you design mixed power...
-bala
On Aug 30, 2012 4:22 PM, "Tayyab Rahimkhan Pathan" <
Tayyab_Pathan@xxxxxxxxxxx> wrote:
> Hi,
> I have to use a Ferrite Bead (FB) for SPI bus interface signal line
> protection. Which will be preferred impedance 33E @ 100MHz or 120E @ 100MHz.
> I think 33E @ 100MHz specs FB will be good for SPI bus or will it be
> dependent on driver and trace impedance?
> Pls help.
>
> Regards,
> Tayyab
>
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