[sdiy] clock Divider - I almost get it.. one more thing..

[Harry Bissell & Nora]

As I mentioned in an earlier post.... you could either use the outputs
straight from the CMOS... or buffer them.  The Polyfusion used opamp
voltage followers as buffers, Ken Stone used transistors. There is some
benefit to either method (opamp can actively source / sink current vs
the transistor method could be much smaller on the PCB / cost vs performance
etc). The best method is the one that meets your needs.

H^) harry

Harry Bissell loves Nora Abdullah
Married Nov 6th 2006

--- Scott at scottwick.com wrote:

From: "Scott" <Scott at scottwick.com>
To: <synth-diy at dropmix.xs4all.nl>
Subject: RE: [sdiy] clock Divider - I almost get it.. one more thing..
Date: Fri, 6 Jul 2007 16:38:02 -0500

I re-read the pages on Ken's dividers and I understand most of it. (it
helps that it isn't the middle of the night, as it usually is when I'm
working on this stuff)
http://www.cgs.synth.net/modules/cgs22_master_divider.html
I was comparing it to the link that Romeo just posted, and am trying to
understand the differences.
http://www.synthdiy.com/files/2006/polydiv.gif

Why are the outputs so much more complex on the polydiv?
I guess I need a refresher on op-amps.  It looks like he is shaping the
output pulse, but why is that needed in that circuit, but not on Ken's.




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