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ADF4001 - Interfacing CMOS VCXO to RFin

Question asked by Mark_B on Nov 17, 2015
Latest reply on Nov 19, 2015 by Brigid.Duggan

I am using the ADF4001 to lock a 40MHz VCXO to a 10MHz reference. The output of the VCXO is CMOS. It looks like the RF input to the ADF4001 is low impedance (which is great for 50 ohm VCOs). Any suggestions on interfacing the CMOS level VCXO to the RFin of the ADF4001?