Hi there, we are planning to use the TPS65930 in conjunction with the DM3730 and I need clarification on the use of the audio codec.
In document SWCS037E, page 61 there is a note stating “If two audio inputs are needed, and mic bias is not needed, the AUXR input can be used
with MIC_MAIN to provide the two inputs.” Bearing in mind that the MAIN.MIC input is differential and AUXR is single ended, I am confused as to what way this would be wired up.
Also can you confirm that if all internal amps are set to 0dB gain, that the maximum analogue signal both for input and output is 1.5Vpp. In other words the ADC/DAC line up between 0dBFs and the analogue realm is -3.29dBu ?
Many thanks,
Hugh