A good PCB layout for the TJA1042T/3/CM involves keeping the CAN bus traces as short as possible, using a solid ground plane, and minimizing the distance between the device and the CAN bus connector. Additionally, it's recommended to use a common-mode choke and a shielded cable to reduce electromagnetic interference (EMI).
To ensure EMC with the TJA1042T/3/CM, follow proper PCB design guidelines, use a shielded cable, and implement a common-mode choke to reduce electromagnetic radiation. Additionally, ensure that the device is properly grounded and that the CAN bus is properly terminated.
The maximum cable length supported by the TJA1042T/3/CM depends on the specific application and the type of cable used. However, as a general guideline, the maximum cable length for a CAN bus system is typically around 40 meters (131 feet) at a data rate of 1 Mbps.
To troubleshoot CAN bus communication issues with the TJA1042T/3/CM, use a CAN bus analyzer to monitor the bus traffic and identify any error messages or bus faults. Check the device's power supply, clock frequency, and termination resistors, and ensure that the CAN bus is properly configured and terminated.
The operating temperature range of the TJA1042T/3/CM is -40°C to 125°C (-40°F to 257°F). However, the device's performance and reliability may be affected at extreme temperatures, so it's recommended to operate the device within a temperature range of -20°C to 85°C (-4°F to 185°F) for optimal performance.
TJA1042T/3/CM,118 datasheet
by NXP Semiconductors
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