[sdiy] Resonator type filters

[Rick Jansen]

On 30/06/2017 02:20, Mike HEQX wrote:
> https://www.maximintegrated.com/en/products/analog/analog-filters.html
>
> Use to have an MF10CN switched capacitor filter setup in 1984 and it was fun, but long
> gone. Maxim has the ball now and they have a good selection of parts. Those switched cap
> filters are not cheap, but could be awesome for animated filters or an equivalent (
> sort-of ) of other filter circuits. I suppose many people figured this out a while ago.

The was (is) the LMF380 too, a "triple one-third-octave switched capacitor active filter".

(https://www.digchip.com/datasheets/parts/datasheet/321/LMF380.php)

I have bought 20 back in the day, but never got round to actually use them..

I think they were intended more for measurement purposes, like a hardware audio analyzer, 
rather than splitting up audio in usable bands.

rick