Dennis Field / dvk-mx8m-bsb - History

In preperation for the final order, re-export all the manufacturing files using the current date and rev number v1.0.0

Add the fab's stackup, panel array working files, and their CPW calculations

Make the ENET_* traces on the top layer 53mils in order to ensure they have a 50Ohm single-ended impedence, move one of the 5V_P bypass caps close to the SoM end of the USB2 diff pair, add meanders to the ENET_TXC, ENET_TX_CTL, ENET_RX_CTL in order to ensure these segments are matched to the long ENET_RXC segment (56.051mm, the rest of the RGMII signals are <10mm skew from this length and don't need adjusting, re-route the SIM card such that UIM-RESET is routed in between UIM-CLK and UIM-DATA as recommended by a BB manufacturer

Add pi-matching circuit to the baseband modem antenna's feedline

The return path for the antenna may have to have a 6.8nH Murata LQG15HN inductor installed on it (cutting the ground trace shorting the pads). The BoM was updated with the new components and everything was reannotated and updated (page 2's caps were out of order).

Change all 0603 capacitors _EXCEPT_ the 2.2uF, 4.7uF, 8.2uF, 10uF, and 22uF caps to 0402

Routed and connected some passive components around the ethernet interfaces.

Detected and corrected numbering error with MagJack J1701.
Eventually error with missing VCC of Pin 1 of J1707 (to be checked).

Use the new 1.5mm diameter test point footprint from KiCad 5's library

Update the schematic symbols and footprints after upgrading to KiCad 5.0.0, fix all ERC and DRC violations after the new update/upgrade

Add a 100k pull-down resistor to the the class-D audio amplifier's SD# / MUTE pin