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Original question:

TPA2016D2: Audio forum

TPA2016D2: How to achieve the consistency of L/R output power for different impedances

Lumina Gui
Genius 3075 points
Part Number: TPA2016D2

Hi TI Teams,

For the design of TPA2016D2, we have encountered a new problem, that is, due to the structural design, the FPC of the left speaker is relatively long, so a DC impedance of about 1.1ohm is introduced, resulting in a difference in the gain of the two speakers. We Is there a hardware design-side solution for this problem, or can this problem be solved with software? 

At the beginning, we wanted to set different gain values of L/R through the software to achieve the consistency of L/R output power, but the AGC function will pull the two output powers into the same. So can u help to provide some good suggestions for this problem?

Thanks,

Kind Regards