This is, essentially, how modern delta-sigma DACs work while achieving 24-bit and higher precision using only a single bit converter internally and a lot of clever digital filtering. Multiple loops are what would be called "higher order" in delta-sigma parlance. Delta-sigma tech is not poor man's DAC - it has properties that other conversion methods can't achieve, e.g. noise shaping and trivial aliases rejection. I suspect delta-sigma body of knowledge can be applied almost wholesale to this seemingly silly oscillator concept. Did I just repeat something trivial that has been discussed to death here before? Leo
> From: Bob kb8tq <[email protected]> > Subject: Re: [time-nuts] Holdover, RTC for Pi as NTP GPS source > There’s no particular reason to stop at the 100:1 point. You can run multiple > loops at the same time and get out to essentially any level of precision. The > only question is over what averaging interval the precision applies. _______________________________________________ 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.
