Hi,
I am trying to design a Synthesizer system using LMX2541, and I just wonder how the RFout pin works?
I saw datasheet shows that the output power depends on register number, and the output impedance also depends on frequency.
In my case, I just need the output frequency at about 200MHz, and I want to feed that signal into a simple XOR mixer which is able to run up to 3GHz. ( Which should take rail to rail signals as input)
So , I just wonder if I have to use a high speed Opamp as a buffer to drive the output of the RFOut pins, or simply feed it into XOR works fine?
What should be the maximum amplitude I can get from the output?
Thanks!