SUPP verification board
This board has all the other random circuits I need to test out before committing to the final PCB. It's not complete, but so far there is:
1. PCM5100 i2s DAC
2. Class AB headphone amp
3. Class D 2Wx2 speaker amp with auto gain control and volume leveling
4. Li-po fast charger (3A)
5. Li-po fuel gauge and charge balancing
6. Kinetis power management/N64 controller MCU
So 3 different I2C controlled devices.
I will edit this post as the board progresses.