Quote Originally Posted by Luciano
Hi Mario,

Search DDS (Direct Digital Synthesis).
Search with Google: DDS 16f84

Examples with an AVR:
http://www.myplace.nu/avr/minidds/
http://www.geocities.com/leon_heller/minidds.html

Best regards,

Luciano
thank you for ur co-operation but that will not work with me. My project should be portable (not connected PC).what I want exactly is simple (sinewave) oscillator circuit with a single supply (not more than 9v) at 10 MHz or more.