Originally Posted by Zero Cool
I have s somewhat related question...is there a standard or a reference voltage level for 0dbfs??? IE should 0dbfs = say 2vrms? or is there a standard for what 0dbfs is voltage wise?
No. It varies from chip to chip. They all require a precision Voltage reference, often provided within the chip. It's pretty common (at least in video) to do fine level trimming by altering the reference Voltage a small amount. You'll just have to read the data sheets to find what you have.