Dennis Field / dvk-mx8m-bsb - History

Tidy up some of the TCPC PHY signals on the In2.Cu layer

Connect more nets, bring the unrouted count down to 92

Use fat copper pours to route the 22V4_P and LCD_LEDK nets to the display/DSI connector

Increase the 22.4V LED backlight boost converter's output capacitor to 4.7uF, coarsely route the 22V4_P rail to the display

Increase the footprint size of C461 to 0603 and increase the value of R418 to 33k in order to be able to use common 1uF 0603 capacitors rated for 35V

The worst-case OVP with R417 and R418 being rated at 1% is 34.96V which is still below the 35V rating. The output voltage is typically 22.4V which is well below the voltage rating. Therefore these capitors should never experience a voltage above what they are rated for.

Re-route the USB hub + SD controller chip's DP0/DM0 as a 90Ohm diff pair which feeds back to the IC's DM/DP pins (17<->31 & 18<->32), re-route the WWAN and WLAN diff pairs after they were shoved in a previous commit (reapplied the meanders as well)

Re-lay out parts of the 1V8_P buck converter circuit to follow a recommended layout, move the 2V8_P LDO circuit away from under the camera and place it on the back side of the board (display side) where the M.2 card will be on the other side where there is plenty of room

Routing and placement of:
* LDO 2.8 V
* Buck converter 1.8V
* Touch controller connector + level shifters
* changes in layer In3.Cu to distribute supply voltages