LMX2594: Input PIN

Part Number: LMX2594

Tool/software:

Hi.

SYNC PIN Select LVDS(INPIN_FMT=3).

(1) What does INPIN_LVL mean? INPIN_LVL=1 (Vin)Does it mean that a large LVDS swing is required to be recognized, such as close to 350mV peak to peak swing . So INPIN_LVL=0=Vin/4, meaning tens of mV  peak to peak swing can be identified?

(2) The standard lvds DC level is 1.2V, if there is a deviation in the DC point level such as 0.9V, is it impossible to directly connect to SYNCpin.