LMX2594EVM: RF output impdedance?

Part Number: LMX2594EVM
Other Parts Discussed in Thread: LMX2594

Hello,

One month ago, I asked one tech issue about LMX2594 chip RF output power.

Today, I have another tech issue during design the circuits according to the schematic of LMX2594 EVB board.

What's the RF output impedance of LMX2594 eval board?

thanks,

Jifei