[time-nuts] time-nuts Frequency Divider
John Ackermann N8UR
jra at febo.com
Sat Apr 4 11:16:27 UTC 2009
Ulrich Bangert said the following on 04/04/2009 06:13 AM:
>> 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.
Brooks Shera used the 4046 as the input conditioning circuit in his
GPSDO that was published quite a while ago. I seem to recall that he
noted only certain brands seemed to work well, but I don't recall the
details.
John
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