Audio board : Design
1 Jul 2019Another busy week, so another short post I’m afraid.
As I sent the larger project I’ve been working on, off for production this weekend I thought I might write about that.
It’s an audio board with a STM32F730R8 as the processor, a TI PCM1860 as the input ADC, and a TI PCM5101 for the output.
If it all works as expected I’ll be able to build a whole load of audio things, from hardware digital synths and audio effects units, to USB input/output devices. I stuck full size MIDI in/out ports on it so it can be plugged into keyboards or be used to drive them.
You can look at the schematic if you’re interested.
Some pages look a little sparse and that’s because there was going to be a whole load of CV in/out stuff as well, but I couldn’t get it to fit on the 100x100mm board. For a while I thought about separating it onto a second daughter board and having the two connect via headers, but I decided to just get this board finished, rather than spending ages on it.
Here’s some renders from KiCADs board layout tool:
Now I’ve just got to wait for the PCBs to turn up, and if they look ok, I’ll order the bits and see if the whole thing works.