When I checked the ADL5801 data sheet, I see it shows the IF output as good up to 600 MHz. The data Sheet also mentions that, with matchihg, the IF output can go to 3000 MHz.
I want to use it with an output from 600 to 700 MHz. Problem is, the data sheet does not give enough information to guess what the likely performance would be.
If I use a MiniCircuits TC4-14+ transformer ( 50 to 200 Ohms CT ) which shows a transformer response as less than 0.1 dB across the 600 to 700 MHz range, what sort of passband flatness can I expect with no other matching elements ?