[time-nuts] synchronizing a large number of weakly coupled oscillators
hmurray at megapathdsl.net
Wed May 12 22:31:11 UTC 2010
> Presumably, a large population of cheap coupled oscillators could be rather
> accurate collectively.
There are 2 main sources of error in inexpensive crystal oscillators.
The first is the initial manufacturing error. I'd expect crystals made from
the same batch to have similar errors. If you want a large population, you
are going to get most/many of them from similar batches.
The other is temperature. I'd expect that oscillators of a specific design
to have similar temperature dependencies. Some vendors even include a graph
in their app-notes.
It might be interesting to collect oscillators from different vendors and
batches and see what sort of spread you end up with.
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