CEM3374

[Paul Perry]

At 10:32 AM 25/10/97 +0000, Jeff scopey at hooked wrote:

>I don't really know what I'm talking about.  I have read recently that 
>some people are satisfied with VCO's that don't have any sort of temp. 
>compensation.  Who's to say what's fair game in electronic music.  I 
>hope someone more knowledgable than me addresses this topic with regards 
>to the 3374; in the meantime, I'm wondering if anyone knows a 
>substitution for the TL092's in the circuit, and/or if the circuit can 
>be modified to produce audio rate frequencies.
>
Jeff, if you look at the CEM data sheets you see that the output from 
pin 10  (which is +2.5v at +3300 ppm) is intended to be added onto the 
reference voltage from which the control voltage is derived.... this was done
to simplify use of the chip in microprocessor controlled devices

also why sub TL092s? surely these unlike the CEM chips still exist?

and if you want to change the operating frequency, try the caps on pins 6 and 13

disclaimer: havnt done this myself, I could be wrong..

paul perry melbourne australia