hi, all
I recently design mixer. for accuracy I added LO circuit associated with mixer which included divide by 2 and LO buffer.
when running qpss, I met problem.
For LO frequency 200M, vco frequency would be 400M.
but in qpss settingup form,  200M component was not available.
how could I get the downconverted frequency which should equal fin-200M

thanks

thank u very much
problem solved