ADRF5021 EN pin Internal Pulldown or Pullup Resistor?

Hi, 

Does the ADRF5021 have any internal pullup or pulldown resistor? 

I don't see any mention of this in the datasheet, but if I missed it please point it out to me. 

Want to verify if its ok to leave pin floating (only in case of pulldown resistor, otherwise switch would always be off) or if it must be driven externally. 

Referencing datasheet here: 

https://www.analog.com/media/en/technical-documentation/data-sheets/ADRF5021.pdf

Thanks!