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LMK03000: Jitter information of distribution path

Part Number: LMK03000

Hi,

Customer is using LMK03000C.
Could you let me know the jitter information of distribution path, please?

Customer uses the phase synchronization by SYNC pin.
They want to rise SYNC signal with accurate timing.

Best regards,
Shimizu

  • The SYNC* pin is an asynchronous input where the external sync signal gets sampled/ synchronized in the distribution bus clock domain. Because the external sync signal may not have guaranteed timing relationship with the internal distribution bus clock, there can be up to 1 cycle variation between when outputs are released after the sync input is deasserted.

    I would characterize this as "sync uncertainty" or "sync variation", not really jitter of the distribution path.

    Regards,
    Alan
  • Moreover, die temperature can affect the internal sync propagation delay timing and increase the probability see the 1 cycle of sync variation or delay.

    Regards,
    Alan