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 to
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 con
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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