Hi Michael,

I think is worthwhile to augment Rick’s response by noting  that the premise of 
this project was a direct interface to SERDES transceivers, which required GTH 
generation transceiver—not available in Virtex 6 family (ROACH2).  Hence the 
choice of VC709 platform with Virtex 7 as the back end, much more detail in the 
report.    

One could think of ways to do a ROACH2 interface with extreme demux factor, but 
honestly, given the data rates intrinsic to this conversion rate, we don’t 
think the V6 is well matched generally—also the high demux would make for a 
much more complicated ADC board.

cc to CASPER  list to follow up on your other thread.  

Jonathan


> On Jan 13, 2015, at 12:35 AM, Rick Raffanti <[email protected]> 
> wrote:
> 
> Hello Michael,
> No plans at this point to build a ROACH version.  I am making a couple more 
> for the VC709, but that's it for the development at this point.
> Rick
> 
> On Mon, Jan 12, 2015 at 2:21 PM, Michael D'Cruze 
> <[email protected]> wrote:
> Dear Rick and Jonathan
> 
>  
> 
> I’ve seen the test report for the 26GS/s sampler that you posted on the 
> Casper wiki. I wondered if you could estimate a timescale for the ADC going 
> to production? It looks like it’s still in the early stages of development. 
> Is this intended for ROACH2, do you know?
> 
>  
> 
> Many thanks
> 
> Michael
> 
> 


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