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Re: [Discuss-gnuradio] questions about data freq of data input DAC
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From: |
Eric Blossom |
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Subject: |
Re: [Discuss-gnuradio] questions about data freq of data input DAC |
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Date: |
Fri, 22 Jan 2010 16:20:19 -0800 |
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User-agent: |
Mutt/1.5.20 (2009-08-17) |
On Fri, Jan 22, 2010 at 04:47:12PM -0500, Yan Nie wrote:
>
> Thank you so much Eric. I've another questions can the DAC data
> input frequency be slow down to 25kHz? or make the frequency of data
> transmitted from FPGA be slow down to 25kHz? How can I make it?
>
No.
You can however use the interpolator inside the FPGA
(Digital-Up-Converter, DUC) to do part of the work, then interpolate
in software for the remainder.
Please read the USRP FAQ:
http://gnuradio.org/redmine/attachments/129/USRP_Documentation.pdf
and look at this page:
http://gnuradio.org/redmine/wiki/gnuradio/UsrpRfxDiagrams
Eric