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HMC7044, HMC7043 vs LTC6952, LTC6953

Thread Summary

The user inquires about the differences between the HM704x and LTC695x clock families. The final answer provides a comparison, noting that both families have specialized synchronization functions for multiple chip synchronization but are not compatible with each other. The HMC7044/43 and LTC6952/53 families support different minimum input frequencies, with the HMC7043 requiring a minimum of 200 MHz and the LTC6953 supporting lower frequencies. The user also clarifies interest in using the LTC6952 as a source for the AD9528 to synchronize clocks in a system with the AD9371.
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Can you compare the advantages/disadvantages of the HM704x clock family vs the LTC695x family?  They seem like very similar parts.

Edit Notes

added tags to part numbers
[edited by: ChrisPearson at 2:20 PM (GMT -4) on 18 Sep 2018]
Parents
  • ADI offers the two lowest jitter JESD204B/C multi-output clock generation devices on the market in the <4.5GHz frequency range. While these devices are very similar in some respects, there are some fairly significant differences that may make one device better than the other for your application. These differences are listed in the table below.

    For generating large clock trees.  Both parts have a companion clock distribution device, HMC7043 and LTC6953, that allow for synchronizing clocks and SYSREFs across multiple chips.  

    The HMC7044 and HMC7043 family have specialized synchronization functions that allow for multiple chip synchronization of an unlimited number of clock and SYSREF signals.

    Likewise, the LTC6952 and LTC6953 family have specialized synchronization functions that allow for multiple chip synchronization of an unlimited number of clock and SYSREF signals.

    For multiple chip synchronization, the synchronization functions between the HMC7044/43 and LTC6952/53 families are different.  In other words, connecting a LTC6952 output to a HMC7043 input (or a HMC7044 output to a LTC6953 input) will not synchronize the outputs of both chips as desired.    

    Refer to the product pages and datasheets for more information on multiple chip synchronizations:

    www.analog.com/hmc7044

    www.analog.com/ltc6952

  • The minimum input frequency of HMC7043 is not the same as LTC6953. If HMC7043 is used as a reference distributor, the minimum input frequency of HMC7043 is 200MHz while LTC6953 supports lower input frequencies. 

    Refer to the product datasheets for more information on the minimum input frequency of HMC7044 and LTC6953.

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