Add decoupling/stitching capacitors to the 5V_P, 3V3_P, and 1V8_P rails which will be spread through the respective power planes (not necessarily having to be near chips)
by Eric Kuzmenko 6 years 5 months
added footprint for camera connector
by Christian Schilmoeller 6 years 5 months
Replace the AP22800 load switch with the P-channel AP22814 load switch IC due to its reverse current & over current protection capability, add level shifter circuit to the WWAN's DPR signal
by Eric Kuzmenko 6 years 5 months
Add decoupling capacitors near the WLAN+BT M.2 Key E socket, assign the tantalum capacitors their various footprints, find suitable 220uF tantalum bulk capacitors for the M.2 modules which are rated to 10V
by Eric Kuzmenko 6 years 5 months
Make corrections to schematic based on Emcraft's baseboard revision changes
by Eric Kuzmenko 6 years 5 months
Assign most of the capacitors their respective footprints (most are 0603s), add camera/CSI connector component info, source cheaper distributors for 3.5mm headset jack and RJ45
by Eric Kuzmenko 6 years 5 months
Add notes regarding I2C's 3V3_OUT supply and the fact that it is sourced from NVCC_3P3 (3A BUCK6), add additional notes regarding the RTC and Camera's I2C slave address, reannotate the whole schematic (nearly the last time)
by Eric Kuzmenko 6 years 5 months
Add IRQ# signal coming from the RTC, go over the SoM pins and fix lingering errors that are found
by Eric Kuzmenko 6 years 5 months
Add WWAN and WLAN+BT MHF4 coax connectors and antennae symbols to the schematic, remove home and back buttons, reorder sheets so that GNSS is above the haptic motor sheet
by Eric Kuzmenko 6 years 5 months
Assign UART3 to the GNSS module, remove this UART3 from the WWAN M.2 and assign GPIO5_IO03 to DPR
by eric.kuzmenko 6 years 5 months
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