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Inquiry about clock buffer recommendation including multiplier

JH Shin
Mastermind 9645 points
Other Parts Discussed in Thread: CDCE6214

Hello,

My customer is looking for a clock buffer product that can receive 30.72MHz TCXO output and multiply it by 4 to output 122.88MHz (2 Port).

If there is a suitable product among TI's clock products, please recommend it.

Thank you.

JH

  • 0
    TI__Expert 8421 points

    JH,

    Yes, for multiplication and buffering a clock signal, the best option will be a clock generator.  What kind of output format will you need? CMOS, LVPECL, HCSL, LVDS, etc?

    Will

  • 0 in reply to William Pfennigwerth
    Mastermind 9645 points

    Hi William,

    Thanks for your reply.

    The output format they want to use is LVCMOS.

    Because they want a low-cost product, they prefer clock buffers with multipliers if possible. If that option is not available, please recommend the lowest cost clock generator.

    BR,

    JH

  • +1 in reply to JH Shin
    TI__Expert 8421 points

    JH,

    Because we do not have any buffers with multipliers, a clock generator is the best solution. I would recommend the CDCE6214  as it is low cost and high performance.  The CDCEL824 is an older clock generator with significantly worse jitter specification but its the cheapest option for your use case, so I thought I would include it.  I will also loop in our clock generator expert who can offer any additional support. 

    Regards,
    Will

  • 0 in reply to William Pfennigwerth
    TI__Expert 4555 points

    Hello,

    I will be OOO until Tuesday 1/16, but yes the CDCE6214 can achieve your requirements.

    Best,

    Cris