@jack,
Thanks for the update.
Am I correct that the GPIO I2S Bus audio interface pins that are available are not going through any UM3204 level converters from the SoC? I do not see it in the schematic for V1.3 which is the same as the V1.4 version. If so, I can design my own 1.8V to 3.3V logic level interface for an external DAC.
Please let me know.
Best regards,