AD9649 input transformer

Hi all,

In the clock input options section of the datasheet of the AD9649 ADC, the recommended transformer is a mini-circuit ADT1-1WT which has a 75 ohms input impedance while the matching impedance seems to be 50 ohms. Is it ok with this transformer? Can we use this transformer also at the frontend in a transformer coupled application or should I use the 50 ohms equivalent?