Re: PCB power planes?

John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
news:6ss674hddj3pq8j3meuo5bahv7hur5tl23@xxxxxxx:

Sure you can make your own, but it will be 20 times the size, and 2x
the cost, of the DDS chip or dac you're trying to post-filter. And
past a couple of MHz it will be difficult.


In my world, you need to filter before you acquire, and the rate you
acquire at isn't necessarily known at design stage, and can change. So the
rules are prefilter with a tunable filter, or use a fixed filter and sample
3-5 times faster than the maximum rate you really need. Past a couple of
MHz it is difficult, but not everyone works up there.

--
Scott
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