Re: [casper] casper Digest, Vol 75, Issue 8

2014-02-13 Thread Gerry Harp
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

Re: [casper] casper Digest, Vol 75, Issue 8

2014-02-10 Thread Madden, Timothy J.
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

Re: [casper] casper Digest, Vol 75, Issue 8

2014-02-10 Thread Dan Werthimer
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