Proper termination of unused PLL LOOP FILTER pin on AD9910?

I'm providing an external clock to the AD9910 so I'm not using the internal PLL.

What is the proper way to connect (terminate) the PLL LOOP FILTER pin on the AD9910 when the PLL is not being used?

Note that the AD9912 requires a 1k to GND under these conditions.

Cheers,

David