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Crystal Specification for AM1808

Other Parts Discussed in Thread: AM1808, OMAPL138

I Would like to know the crystal clock input requirement for AM1808 with regard to Frequency tolerance and Frequency stability. I am planning to use 24MHz crystal. Please provide me the details regarding the Freq tolerance and Frequency stability. Since USB requires +/-50ppm clock requirement, does this means the 24MHz clock in to AM1808 also shouldnot cross this spec for proper functioning of the device

Sudarshan

  • Hello Sudarshan,

    There is no specific recommendation on input clock frequency tolerance and stability. 

    Since USB requires +/-50ppm clock requirement, you could consider this as a maximum tolerance for input clock as well.

    Some of our EVM board like OMAPL138/C6748 LCDK (same family) also using crystal with +/-50ppm.

    Regards,

    Senthil