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ADL9005 schematic pin12 and pin 13

Hi, 

I have one question about ADL9005 circuit, in the datasheet application circuit Pin 13 connect to DC GND directly. And in the User guide UG-1859 demo board circuit shows pin 13 connect to pin 12 and decoupling 0.01uF to DC GND, the circuit shows below figure. (left figure is datasheet, right is user guide)

Which one is correct about the circuit ? And the difference whether influence the parameter?

Thanks.

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