[time-nuts] Re. DIY atomic "resonator" 6GHz synthesizer from ADI

paul swed paulswedb at gmail.com
Tue Apr 11 17:59:21 EDT 2017

When I read about the frequency generation in the Rb or CS there are
normally many numbers associated with the actual frequency. Down to at
least the 1 Hz level. Many of these PLLs are intended for multi-KHz steps.
I speculate you might need 2 PLLs one thats very fine in I hz increments
that gets added to something like these PLLs that step in 200 KHz

On Tue, Apr 11, 2017 at 2:32 PM, Alex Pummer <alex at pcscons.com> wrote:

> the are 6GHc synthesizer chips from ADI available see here
> http://www.analog.com/en/analog-dialogue/articles/design-a-
> direct-6-ghz-local-oscillator.html
> 73
> Alex
> On 4/11/2017 8:29 AM, Attila Kinali wrote:
>> On Tue, 11 Apr 2017 07:31:01 +0000
>> Andre <Andre at Lanoe.net> wrote:
>> Has anyone else either built an atomic clock around a bare Rb lamp module
>>> "core" or attempted
>>> to make a hydrogen maser?
>> Building my own Rb vapor cell standard or H-maser is on my list
>> of Things-I-have-to-do-before-I-die :-)
>> If I had to do one of those now, I would go for a Rb vapor cell
>> with dual-resonance using an external cavity laser diode for pumping.
>> The electronics for such a thing are relatively easy, if you are not
>> afraid of Jiga-Hurts and using these pesky QFN packages. But it isn't
>> cheap either. There was a discussion started by Bert[1] where I ventured
>> a rough calculation what I think it wold cost. Though I think I have
>> understimated the cost of an ECLD (it's more like 1k-5k from what I have
>> read)
>>                                 Attila Kinali
>> [1] search for "thinking outside the box" in the archives
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