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TAS2563: Questions for speakers characterization and in-system tuning

Paul Lai
Prodigy 10 points
Part Number: TAS2563
Other Parts Discussed in Thread: PP-SALB2-EVM, PPC3-EVM-MB,

Tool/software:

To whom it may concern,

     I'm developing a system with a MCU and an audio subsystem (speakers and microphones) right now.

     I would like to know that:

     (1)(a) If I would like to do the speakers characterization, and is the following connection method correct? Or how to connect?

              My computer => PP-SALB2-EVM  ==> TAS2563YBGEVM-DC  =>  The speakers (which I will use in my system)

         (b) After learning, how could I put the parameters back to my system?

     (2) (a) If I would like to do the in-system tuning, and is the following connection method correct? Or how to connect?

           My computer => PPC3-EVM-MB => TAS2563YBGEVM-DC  =>  The TAS 2563 in my system

          (b) What pins do I need to pull out the line on TAS 2563 for in system tuning and software implementations? (Are there SDIN1, SDIN2, SBCLK1 and SBCLK2?)

          (c)After in-system tuning, how could I put the parameters back to my system?

Thanks.

  • 0
    TI__Expert 8820 points

    Hello,

    1) We have a speaker characterization guide (link here) that you may find helpful. 

    a) Your computer will be connected to the TAS2563 EVM. The below image shows the set up and connections.

    b) When you have your characterization results, you can save the PPC3 project file. Then you can open this PPC3 project file which will load all of the characterization parameters when continuing with your development in PPC3. To get these parameters to your end equipment, you will use the end system integration tab in PPC3 to export your configuration to a config or header file. 

    2) To provide answers to your questions I'll need some more details. Is the device already on your end equipment? Do you have a Linux, android, etc. based system?

    Also, you are using the BGA device, correct?

    Regards,
    Sydney Northcutt

  • 0 in reply to Sydney Northcutt
    Prodigy 10 points

    Hi Sydney Northcutt,

        Yes, I have the TAS 2563 on my end equipment. 

        No, I just have a windows-based PC. Do I need to install Linux on my PC?

        BGA device means ball grid array device? Yes. However, my end equipment will use 4 layers PCB. Therefore, I have to keep the test pins when I design and layout the circuit.

  • 0 in reply to Paul Lai
    TI__Expert 8820 points

    Hi Paul,

    Thanks for the information!

    The best way to do this is to bring out the I2C pins from the device on your end equipment and connect them to the EVM. This way you can tune the device in the same way you have been with PPC3. The only thing you will need to do it disconnect the device that is on the EVM. To do this you can remove jumpers J10, J1, J13, J12, J4, and J5.

    Regards,
    Sydney Northcutt 

  • 0 in reply to Sydney Northcutt
    Prodigy 10 points

    Hi Sydney Northcutt,

         Thanks for sharing!

         Is it okay if I want to do the opposite? That is, if I want to use the MB EVM board (e.g. PPC3-EVM-MB or PP-SALB2-EVM) to control the TAS 2563 on my end equipment, could I connect the I2C on the EVM to my end equipment (which has TAS 2563 on it)?

    Best Regards,

    Paul Lai   

  • 0 in reply to Paul Lai
    TI__Expert 8820 points

    Hi Paul,

    I should have mentioned in my previous response that the PPC3-EVM-MB would be needed as well. Since you disconnect the TAS2563 device on the EVM though, I believe it will be fine to directly connect I2C from the MB to your end equipment and not connect the TAS2563EVM.

    To characterize your speaker though, you will need to use the TAS2563 EVM. You can refer to the following document for speaker characterization steps: link.

    Regards,
    Sydney Northcutt