SV: Re: SV: Re: [sdiy] Expo converters, lin log etc.

[Ian Fritz]

At 09:01 PM 1/31/2007, Dave Manley wrote:
>Karl Ekdahl wrote:
>>I've got some numbers of V->Hz that does not tell me
>>anything really:
>>
>>Hz      V
>>342     0
>>365     1
>>396     2
>>451     3
>>533     4
>>650     5
>>834     6
>>1182    7
>Normalize the data by subtracting 342 from all. You get this series:
>
>0, 23, 54, 109, 191, 308, 492, 840 which is approximately:
>
>0, 25, 50, 100, 200, 400, 800, 1600, with increasing error.
>
>So... the series is roughly exponential:

But why would you have a constant offset in an exponential 
response?  Doesn't make sense.