Here's an idea which actually works (I tried it). Rather than lock at 10MHz, you lock directly to 1pps.
You can lock an XO to 1/3 Hz steps by locking to 1pps and ignoring two out of three results from the TIC. I did it at 7.333MHz, using an AT90S2313 micro, and you could just as easily do it at 8.333... and then multiply by 8. Yes, it does leave you with a very low loop frequency! Although I've not tried it, you could potentially add 120 degrees equivalent to one intermediate TIC result and subtract 120 degrees from the next, and so lock at 1Hz. 73, Murray ZL1BPU _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
