TAS2505-Q1: About Common Mode

Koji Hayashi92

Part Number: TAS2505-Q1
Other Parts Discussed in Thread: TAS2505

Hi TI-team

What exactly is the common mode described in D6 of Page 1 Registre 10: common Mode Control Register (slau472.pdf) ?
(0: Full Chip Common Mode is 0.9V, 1: Full Chip Common Mode is 0.75V)

Currently, AINL and AINR generate 1.8V with LDO of TAS2505-Q1, and 1/2 of that is input to TAS2505-Q1 as common level.

(Set by Page 1 and Register 2)

Is this voltage ?

Best Regards,
Koji Hayashi

over 4 years ago

0 Luis Fernando Rodriguez S. over 4 years ago

TI__Guru* 84915 points

Hi, Hayashi-san,

The Full chip common mode leve doesn't apply for the TAS2505-Q1. It is actually not specified in the datasheet, but this common-mode level refers to the headphone output, available only in the TAS2505 (non Q1 version). We are working to add this information in the Reference Guide and datasheet.

Sorry for the confusion here.

Please let me know if you need additional details about this. We will be glad to help you.

Best regards,
Luis Fernando Rodríguez S.

0 Koji Hayashi92 over 4 years ago in reply to Luis Fernando Rodriguez S.

Mastermind 6970 points

Hi Luis-san

Thank you for quick response.

I understand.

I am looking forward to adding comments.

Best Regards,

Koji Hayashi

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TAS2505-Q1: About Common Mode