IQ-Hack

IQ 3V3 Hack | resources

To have a "direct line" to the DACs 3V3 AVDD we removed the onboard LDO (not too difficult to achieve) and used the hole "R5" to solder a tiny hookup wire to the board for an external 3V3 regulator. Click to enlarge picture.

The boards 5V input @ GPIO pin 2 & 4 becomes obsolete (I didn't check on the onboard headphone amp but I can confirm it for the DAC).