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CDCEL925: The ppm of XIN and XOUT Question

Part Number: CDCEL925


hi,

it's my first time to evaluate the CDCEL925, some questions need your help to clearify, thank you.

1> what's the external XTAL's ppm limitiation? any range of ppm is suitable for CDCEL925?

2> If my external XTAL is 27MHz +/-80ppm, set the multipy as 1, will the Y1/Y2/Y3 alos output 27MHz +/-80ppm? Or can it get better ppm?