Re: Anybody using Anadigm FPAA's?

From: Ben Bradley (ben_nospam_bradley_at_frontiernet.net)
Date: 02/09/05 

Date: Wed, 09 Feb 2005 17:27:54 GMT

On Wed, 9 Feb 2005 09:54:51 -0600, "Dan K"
<danielgkNOSPAM@voomtech.com> wrote:

>FPAA is a "field programmable analog array". I've been thinking of buying
>their development board ($200) to play around with. Their subwoofer filter
>sounds like something I would like to try. I'm not real proficient with
>analog, but I gather that might be one of the advantages to FPAA's as it
>looks like their s/w can handle a lot of the analog pit-falls for you.
>Anybody got any experience? good/bad? easy/hard? comments?

   For well under $200 you can buy Don Lancaster's Active Filter
Cookbook, and some excellent audio op-amps and passive components from
Digikey and make your own "suboofer filter" that has much better specs
(lower noise, lower distortion) than the FPAA.
   Anadigm's parts are apparently the same ones Motorola was trying to
sell in the late '90's, and gave up on after only a year or two. IIRC,
the specs of the internal op-amps are really bad, and will make one
long for 741's. I know there's got to be some really good, neat
applications for these things, but I just can't think of one.

>Thanks - Dan K

-----
http://mindspring.com/~benbradley

Relevant Pages