PLL's (Re: [sdiy] more pitch shifter thoughts)

[anthony]

>> http://www.musicsynthesizer.com/WoggleBug/WoggleBug.html


The Wogglebug is on my list of things to make fer sure (along with some 
other Wiard stuff).

>> is probably more what you're interested in.  This is a purposefully
>> "misbehaved" 4046 PLL project with outputs tapped from some
>> interesting places.
>

> place to start. The PLL as mechanism is underused IMHO. Both in their 
> strict
> locking form as well as their looser "misbehaving" form. Maybe it's time 
> to
> make a generic PLL module for people to play with?

I've been wondering what could be accomplished with other PLL's too like the 
564 and the 565 and even some newer ones like the MC88916, TBB200, UMA1015 
(a PLL and then some...), oh yeah and the XR2212 and XR2215. Of course I 
only wonder this because I happen to have at least one of each (a bunch of 
TBB200's though...) - oh except for the XR chips. They look neat though. I 
suppose I might be on my own in this regard unless someone else has already 
messed around with some or these. But hopefully someone has a big pile of 
junk like I do and is after the same thing.

Still 4046's aren't expensive so buying a few is a trivial matter. I guess 
what I'm wondering is could better PLL research be done with a different, 
but common and cheap, PLL? I've seen stuff done with a 565, but unless I'm 
mistaken they cost around $5, which is expensiveish for me (except for
things like BBD's.)

> Cheers,
> Magnus
>