Re: OLinuXino, a serious Rasberry Pi competitor?

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#275

From: rickman
Date: Sat, 10 Mar 2012 17:54

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On Mar 9, 5:53 pm, Jasen Betts <ja...@xnet.co.nz> wrote:
> On 2012-03-09, Nico Coesel <n...@puntnl.niks> wrote:
>
> >>On top of that it needs 5V *stabilized*.
> >>That is a big problem, it should have been 7 to 20 V unstabilized,
>
> > Is this a hard spec or do they just say that to make it simple. I see
> > a 3.3V regulator close to RP's power connector.
>
> the core runs off that regulator, the USB socket and the expansion
> connectors have the input power directly connected.  The ethernet and
> the onboard USB hub may need 5V.
>
> --
> ⚂⚃ 100% natural
>
> --- Posted via news://freenews.netfront.net/ - Complaints to n...@netfront.net ---

Very unlikely anything needs 5 volts other than the USB connector
assuming it is a HOST connector for mice, keyboards, etc.  But even
then the 5 volt port will not need a tightly regulated 5 volts, it
just needs to be within the input spec... which is somewhat tight at
4.75 to 5.5 volts typically.  But to be sure you would need to check
the data sheets for the parts in question.  Since there is no
schematic available currently, can't do that.

Rick

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From: rickman <gnuarm@gmail.com>
Newsgroups: sci.electronics.design,aus.electronics,comp.arch.embedded
Subject: Re: OLinuXino, a serious Rasberry Pi competitor?
Date: Sat, 10 Mar 2012 09:54:24 -0800 (PST)
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