[time-nuts] time-nuts Frequency Divider
Magnus Danielson
magnus at rubidium.dyndns.org
Sat Apr 4 12:32:57 UTC 2009
Ulrich Bangert skrev:
> Magnus,
>
>> As a curiosity, there are various variants of the original 4046 which
>> has different sensitivity on the input side... one of them
>> has several inverters in a row to get the needed gain where as the other
> variant
>> does not. This difference made a huge difference in some applications.
>
> are you going to say with that it would be reasonable to test different
> brands for input sensivity? I have been believing that all brands have this
> inverter chain.
I don't know for sure about the situation now, but I do know there
existed two variants where one had a shorter chain. It caused trouble in
the production where they had prototyped and built the initial run with
one brand and then second sourced in another brand just to have the box
fail. I can't recall the details of where I saw it, but yes, this is an
issue.
Cheers,
Magnus
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