I am impressed to see such a wonderful forum dedicated to the facilitating world of electronics. Hats of to the host and you guys who give advice and share ideas/information. I would like to build a function generator using XR8038 chip. Can anyone send or tell me where I can find a circuit diagram for this please?
Thanks so much for the reply and link, it helped. I also did some research and found another link from a different manufacturer for the 8038 called the ICL8038 **broken link removed**
These guys have a few nice little circuit diagrams, one of which I am building.
I have used a schematic that I got from the following site: **broken link removed**
It looks like it is working OK but I do get a lot of distortion and harmonics . I think this is from the transformer that delivers the 6-0-6 Volt power to the circuit. The transformer is also inside the metal case that I used.
Try to find Exar appnote TAN005 (i have) it contains a complete scheme.Also recommend for consideration MAX038 d'sheet: it is enhanced version from Maxim-Dallas and working up to 20MHz! (the ICL and XR go very hard up to 1MHz.)
Thanks I will have a look at the appnote. But what I did find was that it was indeed a 50 hz harmonic plaging me. Would it be because the circuit was designed in another country and the caps used for leveling the AC voltage may not be correct for South Africa? Our power network must obviously be 50 Hz, otherwise where does this come from :?: I did turn the back of the metal box around to make sure that it does not directly come from the transformer.