4046phase lock loop[desighning with]

[donald stringer]

Does anyone know of any sites that I can study on this chip and its use?

[Ansil]

http://www.fairchildsemi.com/pf/CD/CD4046BC.html

how ya been??

ps   i wrote you address down wrong, i just got your  package back, i am going to mail it from georgia this time...

[idlefaction]

yeah man, app notes are a great source for info on chips.  i used the app notes from the data sheet for the 4046, for a VCO driving a MF10 filter chip.  (it sounded like shite but that's another story)

i have no idea what a PLL could be used for so i'll watch this thread with interest  

[Mark Hammer]

I scanned a section from a Robert Penfold book on designing with the 4046 and posted it on my site (http://hammer.ampage.org).  Scroll way down, or else go to http://hammer.ampage.org/files and look for it.

[doug deeper]

i know you can make lots of insane noise with them!!!!they can be controled like a theremin too...
doug

[Paul Perry (Frostwave)]

Idlefaction, what sort of 'shite' did your 4046/MF10 sound? might be the shite someone here wants!!

[idlefaction]

heh. huuuuge amounts of bleed from the clock.  i did some reading and the app notes recommended 'either a standard CMOS clock or TTL clock' or something, i was feeding it a 9V square.  i put it through a pot wired as a standard volume control style voltage divider, but it didn't seem to make much difference at any setting.

i googled for ages trying to figure out what a standard CMOS clock was and drew a blank, and the chips were taking up too much realestate anyway cos i was trying for a small hammond box sized unit which was why i was looking at chip solutions anyway...

in short, maybe it's possible to get it sounding good in some way, but it wasn't going to meet my design criteria anyway so i gave up.  (the fact that whenever i turned it on my cat went crazy was a contributing factor, also  )  i do have my two sample MF10s at home still though and one day i will rig up a 4046 and do some more breadboarding....  any advice on what kind of clock to supply a chip that wants a standard CMOS or TTL clock?  

[Paul Perry (Frostwave)]

There are 2 or 3 useful pages on the 4046 in Don Lancaster's CMOS Cookbook (worth picking up, though soe of it is a bit dated now).
As far as the clock is concerned, I imagine anything that goes from fairly low to firly high is OK but, it has to be lie a square wave, because it is usually the 'edge' that does the triggering (anyone who actually does digital stuff tell me if i'm wrong!)

[bwanasonic]

The chip (565) in Craig Anderton's original EPFM Ring Modulator is a phase locked loop, so there is maybe one type of application?

Kerry M