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CDCE949-Q1: Crystal Spec

Jerry Chu
Genius 4915 points
Part Number: CDCE949-Q1
Other Parts Discussed in Thread: CDCE949

Hi Expert,

The crystal vendor said that the crystal stability is -90ppm, what's CDCE949 recommend? Or how to decide it? Thanks!

  • 0
    TI__Genius 16845 points
    You could use this crystal with CDCE949. The stability at the input will track to the outputs as well; you will see the same ppm offset at the outputs.
    Using the on-chip VCXO, you can pull the crystal frequency by +/-150ppm by applying a voltage to VCTR.

    Kind regards,
    Lane