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TPA3245: Recommended cable of clock signals in multiple-device configuration

Genius 3595 points

Replies: 4

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Part Number: TPA3245

Hi,

Our customers want to use multiple TPA3245s mounted by one on one board in an application that requires multi-channel amplifiers.
He plans two clock signals OSC_IOP and OSC_IOM will be connected between each boards.
Which of the following (A) to (C) cable is the best to connect clock signals between boards?

(A) shielded two clock signals together.
(B) shielded twisted pair cable.
(C) cables shielded one by one.

Best regards,

Akio Ito

  • Hi Akio,

    Is the OSC_IOP and OSC_IOM the same signal that need to be connected together between the 2 boards? Or they are separated traces comes from a 3rd board?

    Could you draw a simplified diagram to show your case?

    Regards,

    Hao

  • In reply to Sam(MPAA) Zhang:

    Hello, Hao-san,

    Thank you for your reply. Our customer's planning configuration seems to be same as shown in Figure 2 of the Application Report SLAA787.

    Best regards,

    Akio Ito

  • In reply to Akio Ito:

    Hi Akio,

    I see. In these cables are signals related to clock. I would suggest to select "(B) shielded twisted pair cable".

    Thanks!

    Regards,

    Hao

  • In reply to Sam(MPAA) Zhang:

    Hao-san,

    Thank you for your suggestion.

    Best regards,

    Akio Ito

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