Hi Dan and all
This looks very cool. There is something in the specs I don't understand:
* Analog signal: 50 ohm single-ended configurable as three of:
o 4 inputs at 250 Msps
o 2 inputs at 500 Msps
o 1 input at 1 Gsps
How many analog inputs are there to feed the ADC's? 12?
And some of them come in on the ZDOC connector? How many on board?
Sorry if the answer is obvious, I didn't find the answer myself.
Gerry
On 2/10/2014 7:58 AM, Dan Werthimer wrote:
hi tim,
there is a low power, low cost, roach like board under development,
called SNAP. SNAP uses a kintex fpga,
has two 10Gbit ports, some adc's and frequency synthesizer on board,
and one zdoc for external adc's. info at:
https://casper.berkeley.edu/wiki/DAB-HERALD
best wishes,
dan
On Mon, Feb 10, 2014 at 7:20 AM, Madden, Timothy J.
<[email protected] <mailto:[email protected]>> wrote:
Roach in a balloon....
Just an idea if some engineer wants alot of work to do. One could
put a whole ROACH into a tiny circuit board these days using the
new Xilinx ZYNQ chips. It is a multi-chip module w/ high end
Xilinx and 2 ARM cores. It would of course require recompiling all
the ROACH IP for use w/ ARM. But the resulting hardware would be
small, and not use alot of power. It would be a fun project.
Tim Madden
Argonne Lab
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Subject: casper Digest, Vol 75, Issue 8
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Today's Topics:
1. ROACH on a balloon? (Ben Mazin)
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Message: 1
Date: Fri, 7 Feb 2014 11:22:20 -0800
From: Ben Mazin <[email protected]
<mailto:[email protected]>>
Subject: [casper] ROACH on a balloon?
To: [email protected] <mailto:[email protected]>
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Has anyone flown a ROACH board on a high altitude balloon? Did it
work? Did you make any engineering changes for this challenging
environment?
Thanks,
Ben
__________________________________________________________________
Ben Mazin Phone/Fax: 805-893-3344
<tel:805-893-3344>
Assistant Professor http://www.physics.ucsb.edu/~bmazin/
<http://www.physics.ucsb.edu/%7Ebmazin/>
Department of Physics Skype: ucsb.physics.mazin_b
University of California Office: 2015A Broida Hall
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Gerald R. Harp, Ph.D.
Director, Center for SETI Research
SETI Institute
