The TCAN1046A/V EVM has simple connections to all necessary pins of the CAN transceiver device, and jumpers where necessary to provide flexibility for device pin and CAN bus configuration. There are test points (loops) for all main points where probing is necessary for evaluation such as GND, V_CC, TXD, RXD, CANH, CANL, STBY, and VIO. The EVM supports many options for CAN bus configuration. It is pre-configured with two 120-Ω resistors that are connected on the bus via jumpers: a single resistor is used with the EVM as a terminated line end (CAN is defined for 120-Ω impedance twisted pair cable) or both resistors in parallel for electrical measurements representing the 60-Ω load the transceiver “sees” in a properly terminated network (that is, 120-Ω termination resistors at both ends of the cable). The bus also has termination of two 60-Ω resistors in series with a 4.7nF capacitor to GND at the midpoint, all soldered down. This gives the option to test the other typical termination network on CAN buses.

Figure 1-1 shows the EVM board image.

Figure 1-1 EVM PC Board

Figure 1-2 shows the EVM schematic.