[sdiy] Interesting EDN article on capacitors

[Magnus Danielson]

From: harrybissell at copper.net
Subject: [sdiy] Interesting EDN article on capacitors
Date: Tue, 17 Apr 2007 20:54:03 -0000
Message-ID: <380-22007421720543558 at copper.net>

> April 12, 2007
> Kymberly Schmidt - Maxim Integrated Products
> 
> "Choose capacitor types to optimize PC sound quality"
> 
> It shows the distortions caused by progressively poorer
> dielectrice...  with X7R being the best (of the bad)
> The film capacitor blows the doors off all the ceramics.
> Higher voltage is better, bigger physical size is better...
> any surprises here ?   :^P

Nah...

My problem is that I want good dielectrics (film cap preferably), not too small
in capacitance, surfacemount, relatively small and that survives industry
mounting and soldering for ROHS compliant soldering temperatures.

While that is not for audio in itself, it is for low-freq signals and I do
care.

Oh, the other day we had a bad case of microphony in ceramic caps, luckilly
someone was paying attention and tapping the cap directly made it jump like
hell. "Digital"? BAH!

Cheers,
Magnus