Simple Opamp VCLFO design tool - xls included.

[nelson]

Hi Folks,

I'm just working up a simple universal VCO spreadsheet for putting on my site as a simple design tool.

The VCO is taken from the LM324 datasheet.

Anyway, I've not had time to breadboard this to verify my calculations and I may have stuck a decimal place in the wrong place or something.

Could someone familiar with this give it a try and see if you get good approximations of the output frequencies from the cells?

http://electroconducive.googlepages.com/SimpleOpampVCO-Design.xls

I'll be breadboarding it, but it would be nice to know I'm in the right range with my calculations and not x10e3 out.

[frequencycentral]

I've been eyeing up that LM324 VCO myself recently. I can't help you with the maths, not my thing, but I will breadboard it sometime soon and share my results.