Hi, actually i'm doing my project halfway...
My project title: Programmable Frequency Generator using Printer Port.
Initially, I got the design idea from "EDN" where a DAC is used to interface the parallel port with the VFC.
Now, i'm done with the frequency generating part. Then i faced the problem of getting Triangle n Sine waves. That's why i came to here for help.
About the function generator chips, i found out these two ICs are available in my country:-
1.
https://www.electro-tech-online.com/custompdfs/2006/06/29113-1.pdf
2.
https://www.electro-tech-online.com/custompdfs/2006/06/72349-1.pdf
Can i use these chips together with my existing circuit? (because i don't want to waste my effort) Please advice.