A set of 3D-printed headphones, alongside a DAC/amp/EQ board powered by a Raspberry Pico. - GitHub - ploopyco/headphones: A set of 3D-printed headphones, alongside a DAC/amp/EQ board powered by a R...
Was checking the schematic, nice notes! I would have sprung for a regulated -9V using a dedicated switched cap doubler chip (they're cheap, 1x of these to invert, 1x to double) and a LDO follower.
Was checking the schematic, nice notes! I would have sprung for a regulated -9V using a dedicated switched cap doubler chip (they're cheap, 1x of these to invert, 1x to double) and a LDO follower.
But no turbo encabulator? That's quite a bold design choice.
It would save on a lot of the discrete components used, I am not a fan of running open-loop voltage supplies.