Hi,
I am designing a 4 channel amplifier around the TAS3308 with digital input only. The boardspace is very tight so I would like to save as many components as possible so i would like to remove the analog supply voltages and the capacitors normally connected to them.
The question is : can the following supply voltages be grounded without harming the device or causing any other malfunctions? AVDD_L1..4, AVDD_REF, AVDD_OSC.
There is also a VR_ANA2 but this looks from the diagram to be connected to the PLL circuitry so I assume this can not be grounded.
If the supply pins can not be grounded, can they be forced to supply with only a single capacitor without causing oscillations?
Next question is: can the TAS3308 start on an external MCL using the internal PLL without having an external crystal or oscillator connected? again to save space and in my design I have an external masterclock present when the TAS3308 comes out of reset
Best regards
Jes