[time-nuts] Frequency Dividers

Tom Van Baak tvb at leapsecond.com
Tue Aug 8 21:12:14 UTC 2006


> Hi Randy,
> 
> For most purposes seven 7490's or four HC390's or
> three HCT40103, etc. will work just fine. Speaking
> for myself, the main thing was parts count. And being
> more of a software person than hardware I prefer a
> one IC solution (which has the fun of software) to
> a 3, 4, or 7 IC solution.
> 
> The other issues, which may or may not have any
> bearing on some applications is that the latency
> and the tempco of a multi-chip solution is likely
> worse than a single IC solution.
> 
> Lastly, once one has programmed a PIC you realize
> that dividing by almost any number is just as easy
> as 10M so the same part and same PCB can be
> used for all sorts of creative purposes.
> 
> /tvb

Let me add this photo - I found in a box my first attempt
to make a PPS divider.







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