Hacker News new | ask | show | jobs
by rational_indian 780 days ago
First look up Barkhausen criteria, then read the following. For ring oscillators gain will be greater than unity for only those waves whose period matches the gate delay. Only one such wave exists since the gate delay is a fixed number.
1 comments

It is possible for a ring oscillator to generate harmonics: https://ieeexplore.ieee.org/iel5/16/31849/01482193.pdf
Interesting, would have loved to read the paper. Unfortunately I don't have an IEEE subscription right now.