TAS2505-Q1: pop noise after mute

Hazel Sun

Expert 6535 points

Part Number: TAS2505-Q1

Hi team,

When the IC switches to the mute state, a pop noise is generated, is there any solution to solve this ?

over 1 year ago

0 Ivan Salazar over 1 year ago

TI__Guru* 95225 points

Hi Hazel,

Can you please double check if soft-stepping feature is enabled?
This is controlled by Page 0, Register 0x3F, bits 1-0.
If this feature is disabled, you may try to enable and check if pop performance improves.

Best regards,
-Ivan Salazar
Applications Engineer

0 Hazel Sun over 1 year ago in reply to Ivan Salazar

TI__Expert 6535 points

Hi Ivan,

thanks for the advice, I'll try it, but one more question here, could you please explain the internal mechanism ?

0 Ivan Salazar over 1 year ago in reply to Hazel Sun

TI__Guru* 95225 points

Hi Hazel,

You can find more details in this appnote: https://www.ti.com/lit/ug/slau472/slau472.pdf
Specifically section 2.4.2.2

Best regards,
-Ivan Salazar
Applications Engineer

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TAS2505-Q1: pop noise after mute