celebrevida
Member level 2
I'm researching CML Ring VCO design. I found this paper:
The basic design is this:
Instead of a fixed tail current, you can made it programmable like so.
But their Fvco vs Itail result is baffling me.
I though Fvco would increase with higher Itail. The result in their paper shows the opposite.
That am I missing???
Thanks for any insight.
The basic design is this:
Instead of a fixed tail current, you can made it programmable like so.
But their Fvco vs Itail result is baffling me.
I though Fvco would increase with higher Itail. The result in their paper shows the opposite.
That am I missing???
Thanks for any insight.