In addition to the spread spectrum technology, the TAS5825M device employs dephase circuits to further reduce electromagnetic emission without degrading audio performance.

The dephase circuit improves EMI and noise performance by interleaving the switching timing between the two audio channels. This improved EMI and noise performance reduces conducted emission on the PVDD line because the output ripple current of the two audio channels will be out of phase, and the ripple peak current from the PVDD line will thus be reduced to half value.

Also, TAS5825M supports 45° phase shifts between multiple channels to reduce EMI in multi-device systems. See more details in the TAS5825M datasheet.