Hi everyone,
from what I understand the adc5g can easily sample 2.2GHz bandwidth at 8
bit without a great effort in the design phase.
I'd like to understand how portable would it be a design using roach1+iADC
with 400MHz bandwidth to a roach1+adc5g setup sampling 2.2GHz bandwidth,
just by
i suggest you contact mo ohady at digicom electronics
for pricing and availability of adc's and roach boards.
m...@digicom.org
casper collaborators might already have a design similar to
what you need.
are you building a correlator? or a spectrometer?
how many frequency channels? how many adc
Hi Richard
Sorry about that, updates to the mask of the reorder block did not cater
for defaults expected in other scripts. The reorder block mask parameter
defaults should now play properly. The latest ska-sa repo should work
better for you.
Regards
Andrew
On 21/01/2014 19:46, Richard
The roach 1 will only work at the speeds you are interested at with
the dmux 2:1 option at 4 bits. I think the max speed at 8 bits is
about 3.2GSPS and that is due to the ZDOK interface.
I'm sure with significant effort in planahead you could achieve 5GSPS
on a low resolution correlator in a
you can probably to sample faster than 3.2Gsps 8 bit on a roach1
if you use the -2 speed grade fpga. you can look at the fpga
data sheets to find their max lvds bit rate for the -1 and -2 speed grades.
note that if you want to use the 5Gsps 4 bit ADC, that that's
a different adc board - you can
Hi All,
Could someone summarize this discussion for me re: the case I am interested
in, which is as follows? I have a need for a dual-pol spectrometer
covering an RF of at least 1-18 GHz (0.5-18 GHz is better). From the
discussion, it sounds like one option is to use the 1x5GSPs board at 1:1
hi dale,
your plan sounds good to me.
the adc08-5000 yellow block for roach2 demuxes by 16,
so a 5Gsps sample rates means a 312.5 MHz FPGA rate.
312 MHz fpga rate is not easy to acheive - you need to learn how
to use the plan ahead software, and you can't pack the fpga full.
how many spectral
Thanks Dan. I think I should get a couple of these ADCs and maybe John's
design and give it a try! John, how many channels does your design use
over 2.5 GHz? We would want of order 20,000, if that is possible.
Regards,
Dale
On Fri, Jan 24, 2014 at 7:48 PM, Dan Werthimer
Hi All
I am trying to interface a MKID dac with the roach to generate tones by
using a bram as look up table for DAC but when I try to compile the design
i get an error as below
Error in
'trydac/dac_mkid_4x/Subsystem/parallel_to_serial_convertermatlab:open_and_hilite_system
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