I have read the two papers about the wave union TDC but still wonder if anything reasonable could be done without: 1) place every single gate by hand on the target silicon 2) heavy postprocess the data to obtain results Something like: I have a Spartan3, the WebTool suite from Xilinx and, yes, I have to tinker with the compiler configuration. Finally the data is read by a C8051 (an MCS51-like 8 bit microprocessor). At the moment I'm in the 2.5nS resolution range and successfully made a GPSDO that my company uses for the DVB-T synchronization needs. Next step will be to use a Maxim/Dallas delay line to hardware correct the PPS by the negative sawtooth and try to improve the TDC resolution. Maybe a small Virtex will replace the Spartan...
On Tue, Dec 6, 2011 at 11:11 PM, Attila Kinali <[email protected]> wrote: > On Tue, 6 Dec 2011 17:06:43 -0500 > "Bob Camp" <[email protected]> wrote: > > > It's the "wave union" one that the Fermi labs papers talk about. We > started > > talking about a group design on one a while back. Ultimately it got taken > > off list .... > > What is the status of that? > I would try to help if i didnt know that i have way too > little time currently :-( > > Attila Kinali > -- > Why does it take years to find the answers to > the questions one should have asked long ago? > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
