TAS5825P: Missing register definitions for a commonly used slider in PPC3

Levente Tamas

Part Number: TAS5825P

Hi, I left a feedback on the SLASET9 document as well, that there are two registers which seem to be one of the most important ones adjusting volume 0x0c and 0x10, that are missing documentation in the datasheet, but those are the two registers in the i2c monitor in PPC3 getting 5-byte write bursts when the volume slider is adjusted between +48dB and -110. PGA and AGAIN registers have no similar effect than this single slider alone.

Could you please share the register definition for those two?

Thanks

over 5 years ago

0 Alix Wan over 5 years ago

TI__Genius 9995 points

Hi Tamas,

Please try to refer to the log data with I2C monitor.

BR.

Alix Wan.

0 Levente Tamas over 5 years ago in reply to Alix Wan

Prodigy 110 points

That's where I saw the two registers being written when the volume slider is used. But since that is undocumented, and the numbers make very little sense, it would be nice that it has a documentation. I mean 3 bytes are changing while the slider is adjusted, and seems that one register is for the left one is for the right channel. But these are speculations.

0 Matthew Miao over 5 years ago in reply to Levente Tamas

TI__Expert 6720 points

Hi Levente,

We do have one register map to explain each register. Please send us one email for offline business tracking and required documents.

matthew-miao@ti.com

Regards,

Matthew

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TAS5825P: Missing register definitions for a commonly used slider in PPC3