CVB ElectronicsPCB design, embedded firmware and electronics products

Work

Schematics and layouts

Sheets and boards from recent projects, client work and our own.

Layout — USB-HDMI application module — USB-HDMI application module
Layout
Allwinner H618 BGA
DDR memory
USB + HDMI
DIP switches, FEL and recovery buttons

Schematic — Power path and control — Power path and control
Schematic
STM32U073
TPS62125 buck, TPS63060 buck-boost
INA180 current sense, OPA333
TXS0101 level shifter, USBLC6 ESD

Schematic — Motion controller — Motion controller
Schematic
RP2350B
W25Q128 QSPI flash
SPI to two stepper drivers
Encoder, IMU and magnetometer buses
ELRS radio UART

Schematic — Dual stepper power stage — Dual stepper power stage
Schematic
2× TMC5160A
CSD18533Q5A external bridges
50 mΩ sense resistors
Endstop input per axis

Layout — Wireless board — Wireless board
Layout
Two edge-mounted RF connectors
Shielded module footprint
USB connector

Schematic — HDMI interface — HDMI interface
Schematic
HDMI type-A input
PESD3V3S1UL ESD on each pair
Polyfuse on +5 V
74LVC1G08 reset gating
24 MHz reference

Schematic — SoC carrier — SoC carrier
Schematic
eMMC
Wi-Fi and Bluetooth module
Parallel LCD bus
USB

Layout — Layout detail — Layout detail
Layout
MAX14830 quad UART
3.6864 MHz crystal

Click any image for the full-size view. Drawn in KiCad and EasyEDA. Sources and manufacturing files are handed over at the end of every project.

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