The TCAN1046AEVM has several bus termination options for all available buses. For the TCAN1046A half of the board (top half), the termination on the CAN bus (CANH and CANL) can be configured with the J4 and J5 (CAN1) or J7 and J9 (CAN2) jumpers. For the TCAN1046AV half of the board (bottom half), the termination on the CAN bus (CANH and CANL) can be configured with the J15 and J16 (CAN1) or J18 and J20 (CAN2) jumpers. Each jumper adds 120-Ω termination to the respective bus. When using one resistor, the EVM is used as a terminated end of a bus. For electrical measurements to represent the total loading of the bus, use both 120-Ω resistors in parallel to give the standard 60-Ω load for parametric measurement. The footprint for split termination is also available and can be populated on all 4 buses. These components are not populated out of the box. Table 2-3 summarizes how to use these termination options. If using split termination, match the resistors. Calculate the common mode filter frequency using: f_C = 1 / (2πRC). Normally, the split capacitance is in the range of 4.7 nF to 100 nF. Keep in mind this is the common-mode filter frequency, not a differential filter that impacts the differential CAN signal directly.

The EVM also has footprints for various protection schemes to enhance robustness for extreme system-level EMC requirements. Table 2-5 summarizes these options.