In preperation for the final order, re-export all the manufacturing files using the current date and rev number v1.0.0
by
Eric Kuzmenko
5 years 5 months
Add a TXB0101 logic level translator to the LCD_RESET# signal, the VIH(max) if the LCD's reset pin is 1.8V so the voltage needs to be translated from 3.3V logic down to 1.8V logic
by
Eric Kuzmenko
6 years 2 weeks
Specify the common name of the display manufacturer in the schematic notes
by
Eric Kuzmenko
6 years 3 weeks
Add a note in the schematics about the LCD using the Sitronix ST7703 display driver IC
by
Eric Kuzmenko
6 years 4 weeks
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
by
Eric Kuzmenko
6 years 3 months
Add pi-matching circuit to the baseband modem antenna's feedline
by
Eric Kuzmenko
6 years 3 months
Change all 0603 capacitors _EXCEPT_ the 2.2uF, 4.7uF, 8.2uF, 10uF, and 22uF caps to 0402
by
Eric Kuzmenko
6 years 3 months
Update the schematic symbols and footprints after upgrading to KiCad 5.0.0, fix all ERC and DRC violations after the new update/upgrade
by
Eric Kuzmenko
6 years 4 months
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