Hi John, Homin and CASPER lists,I think most of the useful content has been expressed already, I’ll only state that my interest in ultra-fast ADC work continues, and I look forward to discussions at the workshop. I’ll trot out my venerable table of high speed ADCs again, many of you have seen
Hi all. Thanks for the information. I'll try and digest it!
John
On Mon, Aug 6, 2018 at 6:48 PM, Homin Jiang
wrote:
> Dear John:
>
> For the ADCs faster than 10Gsps, i think a bigger FPGA than ROACH2 is
> necessary. The speed of utrascale + FPGA is about 800/900MHz, that
> lead to 32
Dear John:
For the ADCs faster than 10Gsps, i think a bigger FPGA than ROACH2 is
necessary. The speed of utrascale + FPGA is about 800/900MHz, that
lead to 32 (10Gsps) or 64(16Gsps) parallel inputs to PFB/FFT.
According to Rurik's equation, it needs 4 or 16 times resource of
FPGA in comparison
Hi, John,
I was speaking with Homin last week at the CASPER Hardware Porting Workshop
hosted in Cape Town. He mentioned the Analog Devices 10 Gsps 12-bit ADC that I
think is the same one Dan referenced. My recollection of our conversation was
that the pricing was not so bad, but I could be
Hi all. We're interested in wideband moderate performance spectrometers.
Something that can digitize 2 (or 4) polarizations at at ~ 8 to 10 GS/s,
and provide ~4K channels, full stokes, with a moderate dump rate (1 GB/sec
or less).
We could use 8 ROACH-2/ADC-5GS VEGAS-style spectrometer blades, 2
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