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TAS5766MRMTEVM: TAS5766M 2.1 PPC3 Characterization and Eq

Daniele Cecconi
Prodigy 40 points
Part Number: TAS5766MRMTEVM
Other Parts Discussed in Thread: TAS5766M, TAS5782MEVM, TAS5782M

TAS5766M 2.1 PPC3 Characterization and Eq

Hi I need to work on a 2.1 system based on two TAS5766M as in the image.

For TAS (A) there are no issues.

For TAS (B) How should I procede?

1) I could modify the Eval to set the TAS (B) in PBTL mode, should I ?
2)  [ PPC3>Learning Board Home>Speaker characterization--> Single Driver Passive Radiator  ] Does not allow mono mode. Will the characterization work anyway when imported  [PPC3>TAS5766M_Dual Home>Audio processing ]

If you could suggest a workflow to work on this system It would really help.

Thanks

Daniele

  • 0
    TI__Guru 52115 points

    Hi Daniele,

    Unfortunately, it is not easy to modify the TAS5766MRMTEVM so that Device B works in PBTL mode.  I would suggest you take a look at TAS5782M, which is p2p compatible with TAS5766M. In addition, Device B on the TAS5782MEVM can be easily set for PBTL mode.  Besides, TAS5782M has a dedicated flow for 2.1 systems.

    Andy

  • 0 in reply to Andy Liu (BMS)
    Prodigy 40 points

    Hi Andy

    Thanks for the replay.

    I have seen that I can manage to modify the board, this is not the real issue.

    Te TAS5782M could be a solution but the project is already at the final tuning stage, before mass production. It is not possible to change anything hardware now.

    -I understand that there are no PPC3 config mono or 2.1 for TAS5766M, but are there any workaround?

    -We have selected this product for the "smart amp" capabilities and we have to make it work especially for the SUB.

    Thanks again

    Daniele

  • 0 in reply to Daniele Cecconi
    TI__Guru 52115 points

    Hi Daniele,

    TAS5766M only supports smart amp for stereo applications. For mono applications,  you can still go through the same design process. The only difference is that either the left or right channel output is selected and used to drive speakers.

    Here is the workaround.

    First, you need to modify the TAS5766MRMTEVM so that Device B works in PBTL/Mono mode.

    Second, select "Single Driver Passive Radiator" when you characterize the subwoofer speaker and finish speaker characterization.  In the TAS5766M_Dual PPC3 App, select Device B and then import characterization data for the subwoofer speaker. Do your tuning. 

    Andy

  • 0 in reply to Andy Liu (BMS)
    Prodigy 40 points

    I will try the workaround ASAP

    Thanks

    Daniele

  • 0 in reply to Daniele Cecconi
    TI__Guru 52115 points

    Let us know if you see any issue.