PCM5242: How to change interpolation filter

Sadanori Kato

Part Number: PCM5242

Hi,

Does PCM5242 work normally if changing the interpolation filter with the register 43, PSEL[4:0] of page 0 on the fly?
The interpolation filter isn't applied to PCM5242 even if changing the interpolation filter on the fly. Then it seems that the register 2, RQST of page 0 should be toggled.
So, could you please tell me the recommended procedure to change the interpolation filter?

Best regards,
Kato

over 2 years ago

0 Arash Loloee over 2 years ago

TI__Mastermind 19360 points

Hello, I will consult with the team members and find the answer shortly and let you know.

Kind Regards,

Arash

+1 Arash Loloee over 2 years ago

TI__Mastermind 19360 points

Hello, This is the information you needed: The interpolation filter can be changed with just 3 steps.

Enter standby mode
Change the filter
Exit standby mode.

Kind Regards,

Arash

0 Sadanori Kato over 2 years ago in reply to Arash Loloee

Guru 36490 points

Hi Arash-san,

Thank you for your quick response.

If you have an application note regarding the procedure of the register settings, please share it with me.

Best regards,
Kato

0 Sadanori Kato over 2 years ago in reply to Sadanori Kato

Guru 36490 points

Hi Arash-san,

Sorry for rushing you but please let me know if you have any updates.

Best regards,
Kato

0 Arash Loloee over 2 years ago in reply to Sadanori Kato

TI__Mastermind 19360 points

Hello, I don't have any app note regarding the procedure for the register setting. Literature Number: SLAU577A, user's guide, is the only document that is available on this part.

Regards,

Arash

0 Sadanori Kato over 2 years ago in reply to Arash Loloee

Guru 36490 points

Hi Arash-san,

I understand and will contact you if I get additional questions from our customer.

Best regards,
Kato

Audio

Audio forum

PCM5242: How to change interpolation filter