TAS5805M: Boot up don't have sound

Vincent Hsieh

Part Number: TAS5805M
Other Parts Discussed in Thread: TAS5805,

Dear Sir,

We had occasional boot up don't have sound issue.
We have try use the PDN pin to shutdown then initialize the TAS5805 also can't recover.
Must power OFF ( PVDD/AVDD/DVDD ) to ON.

The attached file is our code.
Below is our Start up Sequence.

5861.TAS5805M.c

over 6 years ago

0 Luis Fernandes de Pina over 6 years ago

TI__Genius 16000 points

Hello Vincent,

We will try to get more information on Monday.

Best Regards,

Luis

0 Alix Wan over 6 years ago

TI__Genius 9995 points

Hello customer,

When no sound issue occurs, can you use the enclosed file for locate the root cause?

TAS58x5 Trouble shooting(Draft).pdf

From your scope,PDN pin to shutdown then initialize the TAS5805 also can't recover. Can you do this again and then read back fault register above to see the root cause.

Looking forward to your further information.

regards

Alix Wan.

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TAS5805M: Boot up don't have sound