In general, the AD9665 datasheet rev. E is missing a lot of data.
1) There are lot of missing figures (e.g. figure 6)
2) OUTSEL, OSCEN ViL and ViH are missing
3) I like to permanently disable the internal oscillator. Is it ok? I like to solely use LVDS inputs
4) The exposed pad shouldn't be connected to GND! please correct the datasheet