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Re: [Discuss-gnuradio] USRP for YPbPr ADC?


From: Matt Ettus
Subject: Re: [Discuss-gnuradio] USRP for YPbPr ADC?
Date: Fri, 24 Dec 2004 14:15:09 -0800
User-agent: Internet Messaging Program (IMP) 4.0-cvs

Quoting Seth David Schoen <address@hidden>:

> Matt Ettus writes:
>
> > Quoting Seth David Schoen <address@hidden>:
> >
> > > Does anyone have any information that would tend to indicate how useful
> > > the USRP would be for digitizing a YPbPr component video signal?
> >
> > You'd need to make a DC-coupled daughtercard which would be pretty easy.
> What
> > kind of sample rate and precision would you need?
>
> It seems like you need 3 channels and my
> lots-of-simplifying-assumptions thought is about 4 Msps apiece, 8
> bits/sample each.  That seems well within the capabilities of the
> USRP.
>

Yes, that would be pretty easy.  But I did some calculations, and I come up with
different numbers -- 1920 * 1080 * 30 ~= 62 MS/s.

Matt




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