SLOS948 February 2019 TAS6424M-Q1
Direct-current (DC) content in the audio signal can damage speakers. The data path has a high-pass filter to remove any DC from the input signal. The corner frequency is selectable from 4 Hz, 8 Hz, or 15 Hz to 30 Hz with bits 0 through 3 in register 0x26. The default value of –3 dB is approximately 4 Hz for 44.1 kHz or 48 kHz and approximately 8 Hz for 96 kHz sampling rates.