[SDR] Tayloe

[Barry Buelow]

Al

We've only had one meeting and it was just to determine if there was 
interest. YES
Other than that, we talked about some objectives like performance and 
cost.  Other than ruling out a few things, nothing has been decided:

No to using the beagle audio IO for the sampling.  They may be used for 
speaker and mic.
No to 0 IF schemes

There is a practical limitation on the serial IO between beagle and any 
board we may build.  I recall that might be in the 30MHz range and 
taking 2 15 bit samples (I/Q) 30MHz/30bits = 1M sample limit.  Whether 
this is a 1 MHz A/D or something faster with an FPGA to filter/DDC to 
1MHz is  a very big TBD.  This is all speculation and tire kicking, 
there is no analysis to support these numbers.

Fred's discussion today is attempting to determine if there is a 
significant cost advantage or performance advantage to one method or the 
other.

Now you're up to speed

Barry






On 4/14/2011 5:22 PM, aetupker at rockwellcollins.com wrote:
>
> Again, since I havent been to any meetings I hope this is not stuff 
> that has already been discussed.
>
> This Tayloe mixer looks like it would fix some of the problems we had 
> with the 95-S zero IF "direct conversion" receiver.
> Link to a very good article.
>
> _http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf_
>
>
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