Except Shutdown Mode, TAS5825P has other 4 states
for different power dissipation which listed in GUID-2D0A9234-28BC-4532-8113-38A5E50C385C.html#GUID-2D0A9234-28BC-4532-8113-38A5E50C385C.
- Deep Sleep Mode: Register 0x03h -D[1:0]=00, Device stays in Deep Sleep Mode. In
this mode, I2 C block keep works. This mode can be used to extend the battery
life time in some portable speaker application case, once the host processor stopped
playing audio for a long time, TAS5825P can be set to Deep Sleep Mode to minimize power
dissipation until host processor start playing audio again. Device returns back to Play
Mode by setting Register 0x03h -D[1:0] to 11. Compare with Shutdown Mode (Pull
PDN Low), enter or exit Deep Sleep Mode, DSP keeps active.
- Sleep Mode: Register 0x03h -D[1:0]=01, Device stays in Sleep Mode. In this
mode, I2 C block, Digital core, DSP Memory, 5 V Analog LDO keep works. Compare
with Shutdown Mode (Pull PDN Low), enter or exit Sleep Mode, DSP
keeps active.
- Output Hiz Mode: Register 0x03h -D[1:0]=10, Device stays in Hiz Mode. In this
mode, only output driver set to be Hiz state, all other block work normally.
- Play Mode: Register 0x03h -D[1:0]=11, device stays in Play Mode.