[sdiy] ca3280e

Jim Patchell patchell at cox.net
Sat Dec 13 17:42:14 CET 2008


Well, it doesn't have a lot of uses...but it can be used to help make a 
triangle to sine converter....

http://www.noniandjim.com/Jim/synthmodulesII/200-1007.pdf

look on that schematic, on the VCO-WAVESHAPERS page, at the bottom you 
will see both halves of a CA3280 being used as a triangle to sine 
converter.  Considering the price of a CA3280 these days...that is a 
rather expensive way to do that job...although...it does do pretty 
good...(0.5% distortion).

-Jim

william faulkner wrote:
> hello, my questions for the list and be patient cause i'm pretty new to this but for a 3280 the pin labeled emitter, what is it for?  I,ve used only ba6110 and ne5517 for otas but now am using 3280 cause i scored a bunch, but the previous two only had a buffer pin  is that what the emitter is?  and secondly i saw something on the linearizing diodes that they cancel out the temp drift, is that true for a vco?
> 
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