[sdiy] How to use an analog time-domain multiplexer?

[cheater cheater]

Could you please recommend a book or paper that describes the MFB
filter in the form which you're talking about?

Thanks

On Fri, Jun 4, 2021 at 10:53 AM Tom Wiltshire <tom at electricdruid.net> wrote:
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> > On 4 Jun 2021, at 09:42, Michael Zacherl <sdiy-mz01 at blauwurf.info> wrote:
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> >> On 04.06.2021, at 10:14, Tom Wiltshire <tom at electricdruid.net> wrote:
> >>
> >> For the bandlimiting filter, I don’t think it matters so much.
> >
> > Hi Tom, I don’t see why not?
> > What CC describes is the same process before an A/D-conversion and after a D/A-conversion, just without the binary part.
> > And IMHO of course Nyquist-Shannon applies here.
>
> Yes, of course it does. All I meant was that I don’t think the bandlimiting filter is so fussy about whether it should be Sallen-Key or MFB or whatever. For the reconstruction filter, I can see reasons why it should be MFB.
>
> But definitely both filters are needed, and this is exactly a sampling process without the ADC/DAC step.
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