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CDCE925: Something wrong when Xin linked to Passive crystal oscillator

user4978070
Intellectual 270 points

Part Number: CDCE925

Hi,

We connected Xin with 24MHZ passive crystal oscillator and found that the waveform of the crystal oscillator(Xin) was very jitter....  And i tried all the crystal load configurations without improvement.。

Thx  help 

  • 0
    TI__Mastermind 32575 points
    Does your crystal meet the recommended crystal characteristics in the datasheet?
    Is the issue repeatable if you swap crystals or try a different board?
    Did you make sure there is no excess parasitic capacitance externally (use short traces, no large external trim caps)?

    Alan