I'm wondering if the LTC5586's LO input needs filtering like ADL5380? as it probably shares similar means to shift the LO input for the 0 and 90 degree signals. However, I also realized the 5586 LO input has band selection and a couple of configurable parameter, which may help with LO harmonic tolerance? I don't seem to able to find the official data. Please clarify.
Thank you with regards,