• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 216 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TAS3251: No sound coming from the MUC for the TAS3251 configuration

Cherry Zhou
Mastermind 22235 points
Part Number: TAS3251

Muc failed to configure TAS3251: the MCU configures the initialization of TAS3251, which the customer configures against page 47 of the datasheet, but always no sound come out.

The customer would like to know if it's possible to provide an initialization code.

I2C is configured as follows (read and write of I2C is normal):

TAS3251_SendByte(0x94,0x03,0x11);
TAS3251_SendByte(0x94,0x02,0x80);
TAS3251_SendByte(0x94,0x03,0x00);

The waveforms at the inductor end are as follows:

Thanks a lot!

Best Regards,

Cherry Zhou

  • 0
    TI__Mastermind 22235 points

    Hi,

    May I know is there any updates?

    Thanks!

    Best Regards,

    Cherry Zhou

  • 0 in reply to Cherry Zhou
    TI__Genius 9140 points

    Cherry,

    this indicate PWM is switching, but audio can't pass through. Please check below:

    1. Is the audio data applied at TDM data pin?  can be checked with oscilloscope.

    2. write 0x00 to register 0x02, bring DSP out of RESET.

    TAS3251_SendByte(0x94,0x03,0x11);
    TAS3251_SendByte(0x94,0x02,0x00);
    TAS3251_SendByte(0x94,0x03,0x00);

     3. check if the MUTE pin status.

    As there is quite many registers to configure DSP functions, suggest customer to download PPC3 GUI from ti.com, and configure all functions on GUI, finally dump them into a .h head file.

    Dylan