- 01 Aug, 2018 1 commit
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Eric Kuzmenko authored
The diff pairs going to the NFETs are exactly matched to 0 with their phase/skew; 1V8P still needs to be brought to them.
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- 30 Jul, 2018 1 commit
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Eric Kuzmenko authored
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- 28 Jul, 2018 1 commit
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Eric Kuzmenko authored
Needed to create the HDMI_HEAC_P/N labels to route Utility&HPD as diff pairs. Made cap C1905 NC, which is in parallel with a 0Ohm resistor between the HDMI sheilding and GND.
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- 27 Jul, 2018 1 commit
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Eric Kuzmenko authored
Place and route the BOOT_CFG* signals, correct a signal labelling mistake causing SAI1_RXD0 (BOOT_CFG00) to be connected to SAI1_TXD0 (BOOT_CFG08) BOOT_MODE* still needs to be placed & routed, need to find a good location for the SMD slide switches.
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- 26 Jul, 2018 3 commits
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Eric Kuzmenko authored
Add WiFi+BT antenna footprint, add pi matching circuit to the WiFi+BT antennas' feedlines, increment the capacitor part numbers on page 18 after adding the new (NC) feedline caps and make the respective changes to the reference designators in the BoM
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Eric Kuzmenko authored
Connect the mPCIe mounting holes to ground, use common dimensions for the mPCIe mounting holes, update THT vs SMD definitions for various footprints, re-update all footprints in the layout
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Eric Kuzmenko authored
Place and route the GNSS antenna and its feedline, re-calculate the coplanar waveguide to 50Ohms using EmCraft's baseboard parameters (include new calculations), make the M.2 mounting hole connect to GND and use the recommended size for the hole's dimensions
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- 23 Jul, 2018 3 commits
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Eric Kuzmenko authored
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Eric Kuzmenko authored
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Eric Kuzmenko authored
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- 20 Jul, 2018 1 commit
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Christian Schilmoeller authored
Detected and corrected numbering error with MagJack J1701. Eventually error with missing VCC of Pin 1 of J1707 (to be checked).
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- 19 Jul, 2018 2 commits
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Eric Kuzmenko authored
Replace the CMC-6022-37T microphoen with the CMC-2242PBL-A THT one since the old one cannot be surface mounted/reflowed, add the microphone's 3D model The microphone's pin position/order is agrees with the manufacturer's "measurement circuit" from the datasheet such that the right (facing the top of the mic) terminal/pin is its GND (-).
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Eric Kuzmenko authored
Update all of the 3D model paths to the new directory name structure, use the correct camera mating connector part number AXT530124 instead of AXT630124 which is the one found on the camera, add the camera connector's 3D model
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- 18 Jul, 2018 1 commit
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Eric Kuzmenko authored
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- 17 Jul, 2018 1 commit
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Eric Kuzmenko authored
Update the schematic symbols and footprints after upgrading to KiCad 5.0.0, fix all ERC and DRC violations after the new update/upgrade
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- 16 Jul, 2018 1 commit
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Eric Kuzmenko authored
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- 11 Jul, 2018 1 commit
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Eric Kuzmenko authored
Replace the 103HT NTC thermistor with a ERTJ1VG103FA as found in TI's TIDA-01182 eval board which has a charge controller IC from the same family and uses an 18650 battery, change is due to it being smaller, cheaper, and has the same B value as the recommended thermistor in the charge controller IC's datasheet, comparing the thermistors' tables shows that they are nearly identical and that it should be a drop-in replacement
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- 09 Jul, 2018 2 commits
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Eric Kuzmenko authored
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Eric Kuzmenko authored
Since each of these ICs will be powered at the same time as the SoM regardless of the PWR_EN state, they should share the same I2C bus as the PMIC.
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- 05 Jul, 2018 2 commits
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Eric Kuzmenko authored
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Eric Kuzmenko authored
Emcraft is also going to change this cap to 2.2uF.
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- 04 Jul, 2018 1 commit
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Eric Kuzmenko authored
Now using GPIO5_IO03 (P4.03) to put the class-D op-amp in shutdown and conserve energy when muted, make C1716 near the ETH PHY's DVDDL pin 47 220nF instead of 10uF (EmCraft suggested that this should be 100nF but their's is 220nF, asked why), added a 10k pull-down to PAM2841's ENA pin, added a 100nF cap to the smart card's C1 VCC pin, added a 1uF cap to the haptic motor circuit's 3V3_P rail Still need to use I2C3 instead of I2C1 according to EmCraft's suggestions.
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- 03 Jul, 2018 1 commit
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Eric Kuzmenko authored
Move CAPTOUCH_~RST from BOOT_CFG_03 to GPIO1_IO05/P3.33 (was CSI_P2_PWDN), add a 10k pull-down to LCD_~RESET, make the corresponding changes to the BoM and netlist/layout Having CAPTOUCH_~RST on BOOT_CFG_03 caused a voltage divider on the pin.
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- 02 Jul, 2018 2 commits
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Eric Kuzmenko authored
Re-route the differential tracks going from the USB-C switch IC to the EMI&TVS ICs along with some of the passives around the USB-C switch chip (similar placement to EmCraft's), add a 1uF cap to the EN pin of the 2.8V LDO in order to introduce a small (~10ms) delay between the 1.8V rail coming up and the 2.8V rail
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Christian Schilmoeller authored
Routed some data lines behind USB connector.
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- 30 Jun, 2018 1 commit
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Eric Kuzmenko authored
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- 29 Jun, 2018 2 commits
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Eric Kuzmenko authored
Rename all diff pairs such that they end in _P/_N rather than just P/N (underscore needed for diff pair routing)
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Eric Kuzmenko authored
Make the ETH PHY's crystal's load capacitors 27pF instead of 22pF, Cstray should now be 3.5pF instead of 7pF
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- 28 Jun, 2018 6 commits
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Eric Kuzmenko authored
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Eric Kuzmenko authored
Replace resistors which have specific values that can be converted to more common values in order to reduce the total number of unique BoM line items
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Eric Kuzmenko authored
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Eric Kuzmenko authored
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Eric Kuzmenko authored
Replace the VCNL4040 proximity+ambient light sensor's 470nF bypass cap on VDD with a 1uF one to reduce the number of BoM line items, also replace the USB Hub+SDIO bridge chip's SDCD cap between the P-MOSFET's gate and drain with an 18pF capacitor instead of a 10pF for the same reason (reduce number of BoM line items)
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Eric Kuzmenko authored
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- 27 Jun, 2018 2 commits
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Eric Kuzmenko authored
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Eric Kuzmenko authored
Replace SZMM5Z3V3T1G with MMSZ4688 zener diode which has a higher reverse working voltage to ensure that HP_DET is at a strong HIGH level when headphones/headset are inserted into the jack, replace its SOD-523 footprint with the corresponding SOD-123 footprint from the spec sheet's recommended land pattern
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- 26 Jun, 2018 1 commit
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Eric Kuzmenko authored
Replace camera's schottky+resistor level-shifter circuit with the more functional TXB0101 dedicated IC
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- 25 Jun, 2018 2 commits
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Eric Kuzmenko authored
Change GRM219R61C226ME15L X5R 0805 22uF capacitor to being a CL10A226MP8NUNE X5R 0603 22uF capacitor
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Eric Kuzmenko authored
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