Four quadrant multipliers:Results of my searching

[Magnus Danielson]

From: John Blacet <blacet at blacet.com>
Subject: Re: Four quadrant multipliers:Results of my searching
Date: Sun, 24 Dec 2000 09:03:48 -0800

> You need two trimmers for the 633. Otherwise, pretty low component
> count. You have to be careful about the input impedance of the audio not
> changing (as this effects the trim) and you have to be sure to use the
> correct inputs for the carrier and modulation (audio).

Bascially you are saying that if you use it in a modular setup, you
should have input buffers to get into a controled impedance case, right?

Naturally, having trimmers is of your taste ;)

> Great results can be expected. This is the Klang Werk IC.

Yeah, it looks like a good little chip. Some migth be offended by
price, but if you look at the full price of a box, I often find that
individual components (when in low count) does not change the total
price that much, but may very well greatly affect the "feel" you get
from it. So, better components or added components can be a small
investment for a much better sound and feel. Sometimes can cheap stuff
do the "right thing" thought, and then there is not real replacement,
is there?

Cheers,
Magnus