Additions to Maxim's high-speed LVDS serialiser/deserialiser (SerDes) family, the MAX9263 and MAX9265 serialisers and MAX9264 deserialiser, form a secure, bi-directional digital video link to transmit digital video and audio over a single DC-balance twisted pair or differential line. The GMSL (gigabit multimedia serial link) chipset has high-bandwidth digital content protection (HDCP) and manages protocol transactions using the company's proprietary differential, full-duplex control channel. It also eliminates the CAN/LIN bus for diagnostics, simplifying design and saving space. This approach also enables bi-directional communication with the display module for touch-screen applications. Programmable spread-spectrum modulation reduces EMI, to pass automotive compliance tests, says the company. Integrated hot-swap capability increases fault tolerance and allows on-the-fly frequency programming. Line-fault detection and integrated self-test check for link integrity at power-up. The MAX9263/MAX9265 operate from a 1.8V core, and the MAX9264 operates from a 3.3V supply. All have a separate input for interfacing to 1.8 to 3.3V logic levels. The MAX9265 has an LVDS system interface; the MAX9263/MAX9264 have parallel interfaces and are packaged in a a 10x10mm, 64pin TQFP. The MAX9265 is in a 7x7mm, 48pin TQFP.
