TAS5825M: TAS5825M edge rate control

Hi Kazuki,

1. I heard that Edge-Rate Control of TAS5825M is optimized for trade off between dead-time and EMC.
Yes, if edge-rate is optimized, then EMC would be better, while dead time could be a bit longer. It depends.

2. Our customer's understanding is that TAS5825M has no difference regarding EMI when we compare TAS5825M and the other product which doesn't support filter free operation if we don't use TAS5825M's channel to channel phase shift. Is this understanding correct?
EMI is quite complex, quite a lot thing can be optimized to reach better EMI, including edge rate, phase shift and PWM modulation, FET design. Each product have different EMI features with different design. If customer can have accurate product-product comparison(TI device), we may able to do a general EMI comparison.

Dylan

Hi Dylan,

Sorry for my late reply.

As a conclusion, TAS5825M has better EMI performance than the other Mid power Audio AMP that has similar function even if TAS5825M's channel to channel phase shift is disable. The reason is TAS5825M optimized edge rate, layout, etc. Is this correct?

Thanks,
Kazuki Kuramochi

Hi Dylan-san,

Would you provide your feedback for this?

Thanks,
Kazuki Kuramochi

Hello Dylan-san,

Our understanding for TAS5825M is that TAS5825M has better EMI specification than the other D-AMP(ex. TAS5782M) even if TAS5825M don't use channel to channel phase shift. Is this correct?

I'm looking forward hearing back from you.

Thanks and best regards,
Kazuki Kuramochi

Hello Dylan-san,

Your early reply will be greatly appreciated.

Regards,
Kazuki Kuramochi

Hi Matthew,

Thank you for your reply.
I received answer by the other internally discussion.
So I closed this question.

I appreciate your team's support.

Regards,
Kazuki Kuramochi