AD9252 LVDS interface

Hello,

I am planning to use AD9252, and I have few questions:

1. Loooking at the data sheet page 5 table 3 Innput common mode voltage is says typical 1.2V, but when I search for LVDS oscilator, all of them are 1.25V will those 50mV create a problem?

2. Data sheet is not specifying Typ./Max Differential Input voltage for the clock, can you please provide this data?

3. Do I need to have any termination resistors on clock lines?

4. I am planning to sample input signal with 40MHz frequency, but data sheet is calling everywhere for 50 Mhz, will it create problem?