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TAS5508C: PWM on clock error

Genius 5945 points

Replies: 2

Views: 209

Part Number: TAS5508C

 

Hello

My customer is using TAS5508C for their product.

When input source was changed, clock error will be occur, and small pop is heard from speaker even no music.

I attach the capture.

They set 0x04 PWM Automute = disabled.

They set 0x03 =90h or 80h ( Hard/soft unmute from clock error ), but pop is not changed ( not reduced).

 

 

Q1

In case clock error,TAS5508C automoatically stop the PWM (PWM_P_x, PWM_M_x) inherently?

Can we keeo PWM  running even clock error to set any register.?

Q2

If Q1 were no ,would you please give us any idea to let PWM stop/start gradually in case clock error?

To set soft unmute from clock error using 0x03 was not effective..

 

Please advise

 

 

  • Kanji-San,

    Is it possible to use the soft mute manually before changing the EQ? This should slowly stop the clocks to prevent pop.

    Regards,

    -Adam
  • In reply to Adam Sidelsky:

    Dear Adam-san

    Thank you for your comment ! , and I am sorry the delay of my reply.

    I had tested clock error ( remove I2S (LRCK) jumper of TAS5508C -TAS5631B  EVM) and 

    PWM automatically stops , small clicks due to PWM stop/start is inherent.

    Thank you for answer.

    Best Regards

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