Hello Roberto(TI) ,
I received an additional question from the customer. Would you please answer the following questions?
Q1. About crystal oscillation tolerance ± 50 ppm, Frequency stability (1 year aging) ± 50 ppm is written in the data sheet.
Does this means that for frequency tolerance of ± 50 ppm, a further deviation of ± 50 ppm is permitted after 1 year,
allowing a deviation of ± 100 ppm in total? Or does it mean that the deviation must be within ± 50 ppm even if it is used for one year?
（In both cases, operating temperature condition: at -40 to 85 ° C）
Q2.When using crystal, is there a specification of amplitude level (amplitude voltage) as input specification of XI pin?
Concretely, with respect to Vp-p, Vinl threshold, Vinh threshold,If there is regulation of voltage value, please let me know these value.
Thank you for your help.
Best Regards,Orobianco
