HMC8400 AGC performance

I am using the HMC8400 in a receiver design and I want to take advantage of its AGC capability by varying Vgg.  Do you have any data for the HMC8400 when Vgg is not left open?  Specifically, I would like to set the gain of the device near 0 dB.  What will be the P1dB and IP3 in those conditions?  Thank you.