SN65176BDR

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SN65176BDR is an involving driver/receiver/transceiver IC specifically designed for the interfacing between a high-speed CAN bus and CAN controllers. It fulfills the requirements of the CAN 2.0B standard, with compatibility with synchronous serial data buses based on AAMI standards and embodies the ISO 11898 physical layer requirements.

The SN65176BDR is available in an 8-pin plastic DIP, SOIC, and TSSOP packages, and features a programmable differential input comparator. Differential inputs provide good noise immunity, abundant information transfer capability and high data rate transmission over long cables. This transceiver is designed for applications where simple point-to-point communication between CAN controllers is required. It also features a low power consumption, which is ideal for a variety of applications including automotive, industrial, and medical systems.

Working Principle

The SN65176BDR is a highly integrated transceiver that combines the functions of the physical layer and the link layer in one sturdy package. It supports the CAN 2.0B protocol and is capable of bit rates up to 1 Mbit/s. It works in both the audible frequency-shift keying (AFSK) mode, which is capable of bit rates up to 1 Mbit/s, as well as the low-speed bias/timing control (LBCT) mode, which can operate at bit rates up to 125 kbps.

The transceiver features differential inputs and three differential outputs - one for a standard CAN signal and two for fault-monitoring data. The differential outputs are connected to a CAN bus or fault signal via a transmit connector. It can also be used for transmission and reception of data in to and out of a CAN bus system. It has a programmable differential input comparator which can detect bit errors, ensuring reliable data transfer.

When sending data, the transceiver encodes the data in to the CAN protocol and transmits it on the CAN bus. When receiving data, the transceiver demodulates the received signal and decodes it in to the original data. The transceiver features several fail-safe features, such as pin control (enabling and disabling of the transmitter/receiver status) and output force (forcing logic 0/1 levels on the receiver output pins). The transceiver also features an active power-down mode to reduce power consumption.

Conclusion

The SN65176BDR is a highly integrated transceiver that is specifically designed for use in the physical layer of CAN applications. It features low power consumption and is capable of bit rates up to 1 Mbit/s. Differential inputs provide good noise immunity and abundant information transfer capability over long cables. It supports the CAN 2.0B standard, with compatibility with synchronous serial data buses based on AAMI standards and embodies the ISO 11898 physical layer requirements. The transceiver also features several fail-safe features, such as pin control and output force, to ensure reliable data transmission.

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