ADF5610 EVB Setting....

Could anyone clarify and give me any advice?

Part : ADL5610
Ref. Freq : 50MHz
Output Freq : 10GHz

According to U/G, ADF5610 EVB was tested.
However, the result came out at 9.84 GHz. (Fig. 1)
I don't know which one is the problem.
We derive the same result by changing the Ref. Freq.(10MHz, 100MHz) in Tab 1 of SW. (Fig. 2)

Please kindly help.
Please. Can someone tell me?

Thanks in advance.

Fig. 1 

Fig.2

Fig.3 Test environment