SLAU472C February 2013 – November 2023 TAS2505 , TAS2505-Q1
For the speaker outputs, the analog volume control has a range from 0 dB to –78 dB in 0.5-dB steps for most of the useful range plus mute, as seen in Table 3-10. The implementation includes soft-stepping logic.
Routing the DAC output signal to the analog volume control via Mixer P and Mixer M is done by writing to page 1, register 12, bits D3. Changing the analog volume for the speaker is controlled by writing to page 1 / register 46, bits D6–D0.
The analog volume-control soft-stepping time is based on the setting in page 0, register 63, bits D1–D0.