On Thu, Jan 5, 2012 at 1:48 PM, <[email protected]> wrote: > Hi Chris, > > > The documentation I have says pin 6 is "N/C" but it looks like there is a > > way to extract a usable PPS but I think I'm going to need and LC filter, > > some op amps and a one-shot and a TTL level driver. My guess is that > pin > > 6 is either some kind of engineering test/diagnostic signal not intended > > to use used or the signal is an accident. > > I have two of the older generation. Here the ONLY output is a 1PPS, which > is divided by a fixed 2^23 from the internal DDS-generated frequency > (8.3xxxMHz). It is not possible to get both 10MHz and a 1PPS at the same > time. On the other hand the 8.3xxxMHz is tunable over many MHz. > > (One of the units is also suffering from a mishap. 15V connected to the > 1PPS output did some damage.) >
My guess is that these all have the same part numbers because the hardware is the same. But one chip is a CPLD which might have some very different programming depending on what the customer needed I see some components where never installed on my unit, so it maybe more than just programming. > -- > > Björn > > > > _______________________________________________ > 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. > -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
