[sdiy] 'Reverse' connected 2164 approach for HP filter stage purpose..

[Jean-Pierre Desrochers]

-----Message d'origine-----
De : navelludd at gmail.com [mailto:navelludd at gmail.com] De la part de 
Mattias Rickardsson Envoyé : 10 mars 2014 16:11 À : Jean-Pierre 
Desrochers Cc : synthdiy diy Objet : Re: [sdiy] Looking for 2164 
12db/oct slopes bandpass filter design..
more detailed..

On 9 March 2014 17:39, Jean-Pierre Desrochers <jpdesroc at oricom.ca> 
wrote:
>> My approach here:
>> 
>> Here is a possible 2 x 2 poles, 12db/oct bandpass design made of one 
>> 2164.
>> http://www.arcenson.com/public/2164_BP_filter.JPG

> I'm sorry J-P, but the CV info is incorrect again.   O:-)
> The hi/lo should be switched and the voltage polarities as well:

> -0.66 V gives maximum amplification in the 2164 and therefore MAX 
> cutoff.
> +3.3 V gives maximum attenuation in the 2164 and therefore MIN cutoff.

> /mr


Oooff !
You are right !
I drawn that schematic a little too fast..
Thanks.

BTW is there anybody who used the 'reverse' connected 2164 approach
for HP purpose like the first 2 stages hre ?
> http://www.arcenson.com/public/2164_BP_filter.JPG

Didn't check it on breadboard so far...

JP