TPA3111D1: AVCC Pin Connections

Jacob Wyrick

Part Number: TPA3111D1

Tool/software:

Hi team - Based on the related forum post, the discrepancy for the AVCC connections seems to be a known issue. It is still an issue in the datasheet. When will this discrepancy for the AVCC pin functions and recommended connections be corrected?

Thanks,

Jacob

over 1 year ago

0 Ivan Salazar over 1 year ago

TI__Guru** 113445 points

Hi Jacob,

I'll double check on this and share further information within a couple of days.

Best regards,
-Ivan Salazar
Applications Engineer

0 Jacob Wyrick over 1 year ago in reply to Ivan Salazar

TI__Expert 8655 points

Thank you Ivan!

0 Ivan Salazar over 1 year ago in reply to Jacob Wyrick

TI__Guru** 113445 points

Hi Jacob,

After review of the documentation, here's the correct information:

Pin function table:
- Pin 7 should state: Connect to PVCC through 10ohm+1uF RC filter.
- Pin 14 should state: A 100-kΩ resistor in series with AVCC is needed if the PVCC slew rate is greater than 10 V/ms.
Abs max table remains the sabe, it refers to the correct pin 14 for 100k resistor.

If you can confirm this is as expected I can start the document review process.

Best regards,
-Ivan Salazar
Applications Engineer

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TPA3111D1: AVCC Pin Connections