PUREPATHCONSOLE: About simple resigster tuning variables

takeru ishibashi

Part Number: PUREPATHCONSOLE
Other Parts Discussed in Thread: TAS5806MEVM

I'm currently learning how to use each GUI of purepathconsole3, but I don't really understand how to use the Simple Register Tuning parameters.
Do you have manuals?

Ishibashi Takeru

over 2 years ago

0 Ivan Salazar over 2 years ago

TI__Guru** 109365 points

Hi Ishibashi-san,

Could you please provide the part number of the device you're trying to configure using PPC3? Or a screen capture of the panel you're using within the software?
Thanks

Best regards,
-Ivan Salazar
Applications Engineer

0 takeru ishibashi over 2 years ago

Prodigy 90 points

Hello Ivan Salazar-san

The part number of the device I'm using is "TAS5806MEVM".

Takeru

0 Luis Fernandes de Pina over 2 years ago in reply to takeru ishibashi

TI__Genius 15080 points

Hello Takeru,

Refer to this app note for guidance on tuning TAS58xx devices https://www.ti.com/lit/an/slaa894/slaa894.pdf?

best regards,

Luis

0 takeru ishibashi over 2 years ago in reply to Luis Fernandes de Pina

Prodigy 90 points

Thank you for pointing out the app note.

I would like to ask an additional question, what will change if I change "pre/post" of "SDOUT Origin" in Simple Register Tuning?

Thank you.

Takeru

0 Luis Fernandes de Pina over 2 years ago in reply to takeru ishibashi

TI__Genius 15080 points

Pre in SDOUT, the same data coming in from the I2S input, Post in SDOUT, is the post processed data after all the DSP processing.

best regards,

Luis

0 takeru ishibashi over 2 years ago in reply to Luis Fernandes de Pina

Prodigy 90 points

I was able to understand.
Is there any difference in the sound output from the speakers pre/post?

Takeru

0 Luis Fernandes de Pina over 2 years ago in reply to takeru ishibashi

TI__Genius 15080 points

Hello Takeru,

If you are using the post processed data it would reflect whatever audio processing you are doing on TAS58xx DSP on that SDOUT, Pre in SDOUT showing you the data that the device is seeing on the input of I2S.

best regards,

Luis

0 takeru ishibashi over 2 years ago in reply to Luis Fernandes de Pina

Prodigy 90 points

I understand.
Regarding "PWM Switching Frequency" and "Class D Loop Bandwidth" in Advanced SRT in Simple Register Tuning, in actual use, should both be set to the maximum value?

Takeru

0 Shadow He over 2 years ago in reply to takeru ishibashi

TI__Mastermind 49740 points

Hi Takeru

Seems the information is missed in this datasheet, below table from TAS5825, we could follow the same rules. Larger Bandwidth will help to the THD performance, but need to use the higher PWM at the same time, may get lower efficiency.

0 takeru ishibashi over 2 years ago in reply to Shadow He

Prodigy 90 points

I was able to understand.
Thank you for your reply.

Takeru

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PUREPATHCONSOLE: About simple resigster tuning variables