TAS5825M: Multi-Devices PWM Phase Synchronization configuration procedure

Kazuki Kuramochi

Part Number: TAS5825M

Hello expert,

My customer would like to know about the configuration procedure of Multi-Devices PWM Phase Synchronization.

They would like to configure this setting at start up and datasheet require to halt I2S signal when configuring this setting. But this device's start-up procedure on datasheet require to supplying I2S continuously.
I think this device accept I2S halting after configuring DSP coeff in the start-up procedure.
Is this correct?

Best regards,
Kazuki Kuramochi

over 4 years ago

0 Matthew Miao over 4 years ago

TI__Expert 6720 points

Hi Kazuki,

We will further check with design team about the startup sequence requirement for multi-device PWM phase synchronization, and give you feedback soon.

Regards,
Matthew

0 Kazuki Kuramochi over 4 years ago in reply to Matthew Miao

TI__Expert 8330 points

Hi Matthew,

Would you have any update for my question?

Best regards,
Kazuki Kuramochi

0 Matthew Miao over 4 years ago in reply to Kazuki Kuramochi

TI__Expert 6720 points

Hi Kazuki,

After confirming with design team, I2S halt and back is the trigger signal for multiple device PWM sync. So the sequence should be:

Initialize TAS5825M by following startup sequence requirements.
After initialization, refer multiple device PWM steps to halt I2S, configure I2C, then back I2S.

Regards,

Matthew

0 Kazuki Kuramochi over 4 years ago in reply to Matthew Miao

TI__Expert 8330 points

Hi Matthew-san,

Thank you for your support.
I'll recommend to customer about starting initialization of multiple device PWM steps in the term of Normal Operation.

Thank you and best regards,
Kazuki Kuramochi

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TAS5825M: Multi-Devices PWM Phase Synchronization configuration procedure