TAS5828M: SDOUT

Robert Charbine

Part Number: TAS5828M

Hi There,

SDOUT is a feature of the TAS5828M that we will use for subwoofer output.

1.Can this be configured to be SPDIF format?
2.In the case we use AutoDetect for input sample rate, then how can we use the SDOUT feature?
Let me explain: Our I2S input is 192kHz. Internal DSP runs at 96kHz with auto-detect to run the internal SRC. If we output SDOUT after DSP processing then it will be at the SRC at 96khz rate, not matching the I2S external rate.
How to use it?
Its ok with SPDIF, but if SDOUT is I2S this could be an issue…

Regards,

Robert

over 1 year ago

0 Donny Peng over 1 year ago

TI__Intellectual 1490 points

Hi Robert,

1. It can't be configured to be SPDIF format.

For your other questions, I will test in TAS5828MEVM and reply to you after testing.

0 Robert Charbine over 1 year ago

Prodigy 130 points

Hi Donny,

Did you manage to do the testing?

Regards,

Robert Charbine

0 Donny Peng over 1 year ago in reply to Robert Charbine

TI__Intellectual 1490 points

Hi Robert,

SCLK is as the internal clock for amp.

So the SDOUT is at 192kHz same as I2S.

The DSP runs at 96kHz means the DSP processing frequency is 96k. The DSP processing frequency and I2S/SDOUT are independent.

If you still have questions, please tell me.

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TAS5828M: SDOUT