I was looking into the max DC power the LO pin on the HMC8191 mixer can take. I know from the data sheet there a max 24 dBm on the LO pin, but I believe this refers to AC drive strength not a DC voltage found on the line. The data sheet says in the pin is has a internal DC block, but I need to know what DC voltage this pin can handle?
Should an external DC cap be used?
Usually there should not be any DC coming into this pin. In case this cannot be avoided up to 10V DC is ok in to the RF and/or LO pins.