[time-nuts] 100 MHz decade Divider II

[Bob kb8tq]

Hi

Indeed the filtering / noise shaping aspect of these devices is what ultimately drove 
them off of most test benches. That was still taking place on a few benches back
in the early 70’s (when I first started doing this stuff …).  There were still enough of 
them running around that it was pretty easy to set up a demo of “this one does not
read the same as that one”. 

Bob

> On Dec 1, 2019, at 6:24 AM, Azelio Boriani <azelio.boriani at gmail.com> wrote:
> 
> In my opinion, those PLLs should be made unusually fast to have a fast
> response from input to output. There is also the EFC low pass response
> of the OCXOs.
> 
> On Sun, Dec 1, 2019 at 7:01 AM Perry Sandeen via time-nuts
> <time-nuts at lists.febo.com> wrote:
>> 
>> Yo Bubba Dudes!,
>> Thanks to all who replied.
>> Gerhard, besides giving me voluminous component information asked a number of good questions so I thought the list might be interested.
>> First I'm going to use dip components as I'm unable to use any of the cad programs for PC circuit design. If one could do a PC board design AND was happy using SOT components that would be the  way to go being smaller and less expensive. By doing it the *obsolete way* I have a way to build that fits my skills level.
>> From
>> 
>> I'm going to use used Wenzel OCXO's as they're stable and have EFC plus I'm able to wire them.  The reason for these oscillators is that out of each phase detector I'll have an error multiplication of 10X.  So the second stage makes it 100X and the third stage would be 1,000X
>> So with this amount of error multiplication I want an extremely stable un-temperamental Oscillator whose error will just caused by the EFC.
>> For my decade divider I'm going with the 74AS161N which is about $5 from Mouser but less than $2 on ebay.
>> From Gerhard's and other list comments I'd never choose Morion oscillators.  My plan it to buy the oscillators from the vendor RF-Buy in China.  IIRC he's been around for over 10 years with a good reputation.  Another factor from buying from his is that he has stock in depth which indicates to me he's a serious source.I'm attaching my rough conceptual schematic toshow what I'm trying to achieve.  Comments appreciated.
>> Regards,
>> Perrier
>> 
>> 
>> 
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