Maxim Gb serial link deserializer eliminates separate CAN/LIN interface in infotainment and camera applications

Maxim's patent-pending, full-duplex control scheme eliminates the need for a separate CAN or LIN interface in automotive infotainment and camera applications.

Maxim Integrated Products has added the MAX9268 deserializer to its high-speed LVDS deserializer family. When paired with a gigabit multimedia serial link (GMSL) serializer such as the MAX9259 or MAX9249, the MAX9268 forms a complete bidirectional digital video link over a single DC-balanced twisted-pair or differential line.

Maxim said its patent-pending, differential, full-duplex control channel eliminates the need for an external CAN or LIN interface, thus simplifying design while saving space and reducing cost. The approach enables bidirectional communication with the display module, as well as programming of camera settings through a UART/I2C interface on a frame-by-frame basis.

The MAX9259/MAX9268 chipset is suited for automotive applications such as sign recognition, collision avoidance, night vision, and lane departure.

The MAX9259/MAX9268 offer programmable spread-spectrum modulation to reduce EMI, making it easier to pass automotive compliance tests. The devices allow isolation between the serializer and deserializer through AC-coupling, they provide hot-swap capability to increase fault tolerance, and they allow “on-the-fly” frequency programming. Line-fault detection and integrated self-test features check for link integrity at system power-up.

The MAX9268 operates from a 3.3V core supply and features a separate supply input for interfacing to 1.8V to 3.3V logic levels. The device is packaged in a 7mm x 7mm, 48-pin TQFP and is fully specified over the -40 degrees Celsius to +105 degrees Celsius temperature range. Prices start at $5.25 (1000-up, FOB USA). Device data sheets, evaluation kits, and samples are available under NDA.