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MSP430F449: LFXT1 - Absolute accuray and drift of Cxin and Cxout

franziskus
Expert 6766 points
Part Number: MSP430F449

Team,

We are stating the typical capacitance values for Cxin and Cxout in our datasheet (screenshot below).

Do we have the max values?
Can you give the values for absolute accuracy and drift of those values?


Thanks for your support!

  • 0
    TI__Guru**** 202216 points

    Hi FRAMziskus,

    The image did not attach properly but I gather you are referring to the following:

    Although the variance of these capacitor values is not recorded they are expected to not vary by +/- 10% under any circumstances.  There are several other parasitic capacitances, such as the estimated 2 pF from the package and board traces, that must be considered as well.  Please follow all of the recommendations from NOTE 2 and MSP430 Crystal Oscillator App Report (SLAA322): http://www.ti.com/lit/an/slaa322c/slaa322c.pdf 

    Regards, Ryan

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