[sdiy] Audio decoupling caps

[colin f]

Kemet have a useful paper on this subject here:
http://tinyurl.com/8hek45l

Cheers,
Colin f


> -----Original Message-----
> From: George Kisslak [mailto:groovyshaman at snet.net] 
> Sent: 30 August 2012 15:23
> To: synthdiy diy; colin f
> Subject: Re: [sdiy] Audio decoupling caps
> 
> This would be especially true for SMD.  You can have all 
> sorts of fun due to the coupling with the PCB.  E.g. if there 
> are big temp changes (say for a power amp) the warm up period 
> can also introduce flexing in the PCB that ceramic caps in 
> the audio path can pick up.
> 
> George
> 
> On Aug 30, 2012, at 7:53 AM, colin f wrote:
> 
> > 
> >> A lot of
> >> people hate ceramic in the audio path, but to be honest, I 
> can't hear 
> >> any difference and suspect they're just having an 
> audiophile moment.
> > 
> > Bear in mind that some ceramic dielectrics are 
> piezoelectric / microphonic.
> > Not an ideal property for audio circuits to be used at high volume.
> > 
> > Cheers,
> > Colin f
> > 
> > 
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