Hey TI,
I would like to design a high quality stereo amplifier using the TAS5706B in 2.0 bridge mode, to drive 8Ω loads.
For power supply I'm currently looking at the TPS7A4700 / TPS7A4701 because of its ultra low output noise, aiming for something around 20V.
As it only has 1A max. output, I would like to use one for DVDD/AVDD and then one for each pair of half-bridges (one TPS7A4700 for PVCC_A and PVCC_B and one for PVCC_C and PVCC_D).
Is this at all possible? If so, would it be better to use one for each half-bridge (so using four instead of two). Does it have an effect on audio quality? Would I require extra circuits for this approach (maybe trimmers, additional caps, etc)?
If this is not a good route to go, could you recommend another single regulator to drive all PVCCs with?