A System Evaluation of CAN Transceivers

This application note presents the results of an examination of a two-node controller area network utilizing the SN65HVD230 3.3-V CAN transceiver and the TMS320F243, 16-bit, 5 V fixed point DSP with integrated CAN controller. ISO-11898 (CAN) compliance testing is performed with an analysis of network errors under various experimental conditions, such as bus length, signaling rate, network loading, and common-mode voltage. Introduction A controller area network (CAN) is constructed to test transceivers in a real CAN system to better understand and develop CAN devices. This study further investigates the electrical-layer performance of the bus and the resulting system limitations of the network.