Building XulaBee

Part 6 - Revised PCB

This article continues on from Part 5 - Audio Improvements.

Last night I made some improvements to the PCB design for XulaBee, including:

  • Increased most of the signal tracks to 0.5mm
  • Increased the 5V supply and ground tracks to 1mm
  • Fixed most angled tracks to be 45 degrees.
  • Checked the circuitry to the pmod connector for the SD card
  • Added circuitry for 2x sigma-delta DAC signals, including a dual op-amp to amplify the signals to line-level
  • Miscellaneous other changes

Here's how it now looks:

PCB

Bottom layer copper

PCB Bottom Copper

Top layer copper

PCB Bottom Copper

Larger Views

Building XulaBee continues with Part 7 - PCB v3.