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How to ensure the inputs and the outputs singals be the same by using 2 TLK10022s

user4363042
Intellectual 360 points
Other Parts Discussed in Thread: TLK10022

Hi:

      I want to use 2 TLK10022s between two boards A and B like the picture below.My questions is,how could I make sure the OUTBs be the same as the INAs? The refenrece clocks in these two boards need specially design?

      Is there any example for application like this? 

  • 0
    TI__Genius 16150 points
    Hello,

    You could take this application note as a reliable guide:

    www.ti.com/.../slla350.pdf

    Best Regards,
    Luis Omar Moran
    High Speed Interface
    SWAT Team
  • 0 in reply to Luis Omar Moran
    Intellectual 360 points
    Hi,
    I mean in these two boards, I can use two clock sources in the same frequency or I must use one clock source?
    Futhermore, the REFCLK must be connected to a clock or it can be left unconnected ?
  • 0 in reply to user4363042
    TI__Genius 16150 points

    Hello,

    We suggest use the same clock source. If you use two clock sources the CTC will allow the LS FIFO's to compensate for the difference in REFCLK vs the HS data.

    REFCLK0/1 must be connected to a clock signal.

    I hope this helps.

    Regards,

    Luis

  • 0 in reply to Luis Omar Moran
    Prodigy 30 points
    Does the clock and data recovery (CDR) function of TLK10022 can be recovery the same Synchronize clk with the board A'clk?
    Because TLK10022 used in pairs but on the two small board,such as sketch before,so how to guarantee from A board complete transfer to B board without error?
    If A board has a design clock source, and B board does not have a clock source, only through BOARD B's CDR function, can achieve the above purpose? If it can be achieved need to connect CLKOUT pin or the corresponding pin?
  • 0 in reply to Luis Omar Moran
    Prodigy 30 points
    If A board has a design clock source, and B board does not have a clock source, only through BOARD B's CDR function, can achieve the above purpose? If it can be achieved need to connect CLKOUT pin or the corresponding pin?
    By BOARD A CLKOUT output clock In the BOARD B with TLK10022 CDR function as a clock synchronization with the BOARD A can?
  • 0
    Prodigy 30 points

    hello:

           I have some questions to consult you

           Does the clock and data recovery (CDR) function of TLK10022 can be recovery the same Synchronize clk with the board A'clk?

           By BOARD A CLKOUT output clock In the BOARD B with TLK10022 CDR function as a clock synchronization with the BOARD A can?

           If A board has a design clock source, and B board does not have a clock source, only through BOARD B's CDR function,
    can achieve the above purpose? If it can be achieved need to connect CLKOUT pin or the corresponding pin?

                                                                                                                                                       Thank  you

  • 0 in reply to Luis Omar Moran
    Intellectual 360 points
    Hi Luis:
    Could you like answer the question by xiaofang xiao? We work together on the same project. Thanks very much!