Designing Raspberry CM4 IO Board


need to design an IO board for the raspberry CM4. The board should support a Poe interface 2 cameras, a single DI interface. The RJ45 needs to be mounter vertical. Needs one PWM fan interface. +3Volts, Gnd, GPIO12 adn GPI13 need to be brougth out to a right angle 4 pi connector . Position TBD.
How can I help with your CM4 baseboard project today? Options:
  • Review the CM4 connector pinout and map key nets (USB, PCIe, HDMI, CSI/DSI, GPIO).
  • Plan and add the power subsystem (+5 V input, 3.3 V/1.8 V rails, sequencing).
  • Add connectors (USB-C, Ethernet PHY/MagJack, HDMI, MIPI FFC) and link nets.
  • Check ERC/DRC and fix common issues (grounds, pull-ups, decoupling).
  • Source parts for the DF40 mezzanine, ESD/TVS, regulators, and passives.
Tell me your goal and constraints (interfaces you need, power source, form factor).
Scan schematic power nets
Find suitable 3.3V LDO
Check decoupling guidance
Review USB-C power path
BOM cost/availability

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Raspberry PI CM4 Module