Hi,

I am using Eval board of ADL5380.

If my RF is 2GHz, LO is 2.07GHz then should I expect 70MHz IF on both I and Q?

If my RF is 2.14GHzl, LO is 2.07GH then also I should expect 70MHz IF but phase of the Q would be negative as compared to RF=2GHz case, Is my understanding correct?

If this is correct then output would always contain signal and image, only their phase would be reversed and to achieve complete image rejection i would be needing external 90degree phase shift circuit. Is that correct?

Is it possible to send mathematical analysis of I/Q architecture used in ADI demods like ADL5380 or ADL5382?

Dwijen

Hello Dwijen,

I see that you have two postings asking the same question. Please refer to my answer on the other posting.

Qui