Re: [time-nuts] PLL book 3rd edition

I know for me, I mainly use the "synthesizer on a chip" IC's from Analog Devices/Hittite and National. Their data sheets and ap notes serve as the "textbook". I'm not sure there will be much call going forward for a book on fundamentals that explains how to design synthesizers from first

Re: [time-nuts] PRS 10 and serial port communication

Hello group, I have significant progress with generator. And there were new questions :-) Frequency was little bit higher than 10 MHz - after correction of PLL constants SP and MO now is just on spot. In documentation is not clear described what is active state of signal 1PPS_IN. I found that

Re: [time-nuts] Old xtal filter

Hi It would be a very unusual synthesizer back in 1955. Some sort of carrier recovery / IF application seems more likely. Bob > On Mar 7, 2016, at 6:30 AM, Tim Shoppa wrote: > > For crystal lattice and especially ladder filters, a Q of 10,000 is very > much in the "sweet

Re: [time-nuts] Old xtal filter

For crystal lattice and especially ladder filters, a Q of 10,000 is very much in the "sweet spot" if you are starting off with bare crystals in the Q=50,000 range. Smaller 30-100kHz tuning fork crystals often have Q's around 30,000-50,000 but I don't know the details for the larger tuning fork