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LM4811: LM4811 rate of volume changes

Shlomi Yehezkia
Mastermind 6150 points
Part Number: LM4811

Hi Team,

Woojer use many LM4811 units in their system and for some they would like to modify its levels programmatically from their processor.

From their experiments they see that LM4811 modifies the volume only on very slow commands of volume modifications.

What is the maximal rate for volume changes possible? Datasheet doesn't specify anything about it.

Are there any recommendations how to achieve fast volume changes?

Thanks,

Shlomi

 

  • 0
    TI__Guru** 102105 points
    Hi Shlomi,

    Unfortunately all the information we have is already in the datasheet.
    Right now I don't have any evaluation board to verify the device operation.
    However, from previous discussion on LM4811 application, you could consider the following comment:
    "my application works well with 250ns clock low width and a repetition rate of 1.43MHz (T=700ns)."

    Best regards,
    -Ivan Salazar
    Applications Engineer - Low Power Audio & Actuators