high freq vco

[Scott Gravenhorst]

Just yesterday I played with this very thing.  I was not able to
make a 4046 track more that a couple of octaves.  However, I
had R1 at 10K and R2 at infinity giving a large range.
I am thinking that linearity may improve if I restrict the 
range some???  Anyway, I need it to track a FatMan accurately
enough for music, about 5 octaves.  This would be an ideal
VCO for my purpose since what I really need is to use the 
square output to drive counters for division and/or clock
a pseudorandom noise generator.

"jhaible"  wrote:
>> Yes, but they are linear VCO's, and have a fairly limited sweep range.
>Has
>> anyone sucessfully made a reliable expo converter for them, so they can be
>> driven by 1v/octave CV?
>>
>> Michael bacich
>
>The expo part would be easy if the 4046 is really linear - but *is*
>it linear enough ? I thought not, but then I never really tried.
>
>JH.
>
>
>



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