TAS2563: An abnormal sound appear when playing the clip ‘’150-200.wav”

anthony sun

Part Number: TAS2563

Tool/software:

Hi,

The audio clip is 0dB amplitude, and the frequency range is 150~200Hz. When playing it, the speaker will appear "balabala" sound. If the gain changes from -6dB to -8dB, the sound will disappear. I also check the acoustic

performance for our product. It seems ok. I am curious where leads to this issue. The power supply for the amp is 3V3, and the circuit had been used in the externally-released product, or the problem is from the ppc3 file?

Can you give me some support? The attached files are audio clip, the recording. The ppc3 file will be sent to you by email. It can not been uploaded here. Please help us to check. Big thanks!

Best regards,

Anthony Sun

5 months ago

0 Ivan Salazar 5 months ago

TI__Guru** 108845 points

Hi Anthony,

I've heard similar crackling noise before being related to the pilot tone on/off at lower frequencies, please share your PPC3 file so we can make some edits and send back to you for testing.

Best regards,
-Ivan Salazar
Applications Engineer

0 anthony sun 5 months ago in reply to Ivan Salazar

Prodigy 40 points

Hi Ivan,

The attached file is the ppc3 file. If you do some change on the ppc3 file, it is better to tell us what you have changed. Thanks!

TAS2563_20241014.zip

0 Ivan Salazar 5 months ago in reply to anthony sun

TI__Guru** 108845 points

Hi Anthony,

Please test with the attached file. I'm changing some timing settings for the pilot tone enable/disable sequence.

https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/6/TAS2563_5F00_040225.ppc3

Best regards,
-Ivan Salazar
Applications Engineer

Audio

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TAS2563: An abnormal sound appear when playing the clip ‘’150-200.wav”