The recommended PCB layout for the MAX31913AUI+ involves placing the device near the connector, using a solid ground plane, and keeping the analog and digital traces separate to minimize noise and interference.
To handle high-frequency noise on the CAN bus, use a common-mode choke or a ferrite bead in series with the CANH and CANL lines, and consider adding a capacitor between the CANH and CANL lines to filter out high-frequency noise.
The maximum cable length supported by the MAX31913AUI+ depends on the specific application and the type of cable used. However, as a general guideline, the maximum cable length for a CAN bus is typically around 40 meters (131 feet) at a data rate of 1 Mbps.
To ensure EMC with the MAX31913AUI+, follow proper PCB layout and design guidelines, use shielding and grounding techniques, and consider adding EMI filters or ferrite beads to the CAN bus lines.
The recommended power-up sequence for the MAX31913AUI+ is to power up the VCC supply first, followed by the VIO supply, and then the CAN bus. This ensures that the device is properly initialized and configured before the CAN bus is activated.
