Hi pkern,
Thank you for the answer, it's really helped me.
I still want to understand the impedance matching:
The Internal resistance is about 5kohm. You're going to want some type of external termination for impedance matching. It really depends on the characteristic impedance of your trace going into the AD9577.
Assuming that I will use 50ohm impedance trace going into AD9577, what would be the external termination?
I know how to match RF components, should I do the same here, with LC networks?
Thanks again.