V/F converter: Lm331

Supreme Lord of All Assholes, · 2006-04-30T14:45:32+00:00

Hi, I'm trying to work out a very simple linear voltage-controlleroscillator, ranging from a few Hz to circa a thousand Hz (audio range)and working with 0-5V input tensions, and after some advice I set myaim on the LM331, which is said to be a good voltage-to-frequencyconverter.Anyway, I can't get much out of it.The big problem is that the datasheet provides lots of nice applicationnotes, ranging from coffee machines to DIY Space Shuttles, but does notexplain me how to actually embed the 331 in my circuit.Especially, I can't understand well enough how the external componentshave to be sized and placed and how to calculate the output frequencyin relation to the input voltage.Has anybody got some experience with this toy?Thank you in advance and sorry for my poor english.--Me :-)

Apr 30, 2006 22 Replies

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Supreme Lord of All Assholes, 20 years ago

:-D

Me.

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Michael A. Terrell 20 years ago

File you have a California Redwood in yours.

Service to my country? Been there, Done that, and I\'ve got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida

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bill.sloman 20 years ago

Not likely. There are a bunch of decent trees in the garden, including one beech that is defintely getting too big for its boots - the tree surgeon has promised to do something about that this year - but no Californian Redwoods.

The people who made the garden what it is today did go it for exotics - we've got a big magnolia that just bloomed, so the ground is awash with petals, and there are a bunch of rhododenrons and azaleas, but redwoods don't fit into Dutch gardens, not even big ones (and half an acre is big by Dutch standards).

Bill Sloman, Nijmegen

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