On Thu, 14 Apr 2016 14:02:55 +0200, Jörn Nettingsmeier wrote:
> On 04/14/2016 01:09 PM, Chris wrote:
> > And there's quite a lot more useful and well described material here
> > too.  http://www.edn.com/Pdf/ViewPdf?contentItemId=4429422
> >
> > While it talks about MEMs mics, much of that applies to any very
> > small mic, and the problems of protecting the diaphragm from, yet
> > interfacing it to, the outside world.
> >
> > Chris Woolf
> 
> Hi Chris, excellent link, thanks! That explains it :)

Also of interest, the document titled "Recommendations for Sealing
InvenSense Bottom-Port MEMS Microphones from Dust and Liquid Ingress"
(link on http://www.invensense.com/products/analog/ics-40300-3/)

--
Marc

> Btw, good to see you guys at Mikroforum the other week!
> 
> All best,
> 
> 
> Jörn
> 
> 
> 
> >
> > On 14-Apr-16 11:04, Jörn Nettingsmeier wrote:
> >> On 04/13/2016 04:25 PM, Marc Lavallee wrote:
> >>>
> >>> I'm looking at this product here:
> >>> http://www.invensense.com/products/analog/ics-40300-3/
> >>
> >> Thanks for posting it, that's the first time I see actual plots of
> >> a MEMS microphone. Can anyone explain the reason for the horrible
> >> peak at 15k? Is is possible to linearize it to get a useful
> >> response above 10k, or does it come with extreme ringing that
> >> would make it unusable?
> >>
> >> Always good to learn about up and coming new technologies, but for
> >> this one I'm dusting off and waxing my ten-foot pole...
> >>
> >>
> >
> >
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> 

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