Thankyou to all who responded to my querie - I`ve got 5 74HCT9046BCN on a slow boat from China. They will retrofit the projects where I used a 4046 without much pcb surgery. PLL`s are fun, especially when yo can watch them lock on a Tek 7834 :-) I interloaned the weighty tome again, and am having another read - it is "Phase Locked Loops : Design, Simulation, and Applications" sixth edition - a good bedtime read! Cheers!.....................................................................Don C. ZL4GX
<http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Mon, May 7, 2018 at 6:11 AM, Magnus Danielson <mag...@rubidium.dyndns.org > wrote: > Hi Charles, > > On 05/06/2018 06:08 PM, Charles Steinmetz wrote: > > Magnus wrote: > > > >> If you use it without care and knowledge, beware. That goes for any > >> tool we apply > > > > Indeed! The Cardinal Rule of design! (So often unfollowed....) > > > > "An engineer is someone who can figure out what questions need to be > > asked, figure out how to answer them, and tell when they are correctly > > answered." > > Indeed. I don't claim to be expert on the 4046 family of PLL chips, but > at least I can share my experience and let you know about the things I > learned from being bitten. > > Then, reading Gardners book, and advancing to full PI loop, I feel more > comfortable about mixer or S/R-gate loops. The "magic" of some detectors > have become less of a benefit for many designs. In general, most of my > designs have become much simpler and robust. However, it's always good > to have alternatives. > > Cheers, > Magnus > _______________________________________________ > 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. > _______________________________________________ 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.
