[hpsdr] New RF Digitizer

[Philip Covington]

On 11/14/06, Lyle Johnson <kk7p at wavecable.com> wrote:
> > 6.  The big questions to be answered is whether the AD6636 (or GC5016)
> > is suitable for Mercury or whether we should use a larger BGA packaged
> > FPGA to implement the DDC functions (and how large to get equivalent
> > or better functionality to the AD6636?).
>
> The AD6636 certainly looks like a fast path to get what appears to be
> good performance, quickly.  The FPGA of course is more flexible at the
> cost of higher power consumption and more opportunity to learn/tweak/etc.
>
> AMSAT has a BGA machine on its list for '07, so we'll be able to place
> these parts for prototype work in a couple months.
>
> Lyle KK7P
>
>

When things settle down here I want to go back through the various
verilog DDC stages and see what sized Cyclone II we would have to use
to fit them all in.  I prefer the FPGA path if we can pull it off
without going to $200+ devices :-)

Phil N8VB

 1163533025.0