We are involved in a new design and we would like to use HMC8074 VCO, the datasheet says that only one frequency band must be powered on , but it says nothing about the unsused bands.
Do we have to leave all those pins unconnected or should we connect them to GND?
Thanks in advance.
The supply voltage for unused VCO's should be left floating. Unused RF outputs should be terminated into a 50 ohm resistor to ground.