Maxim’s GMSL SerDes technology extends video transmission in vehicles

For video transmissions in vehicles, Maxim Integrated’s gigabit multimedia serial link (GMSL) serialiser and deserialiser (SerDes) technology is used by MediaTek in its Autus in-vehicle infotainment (IVI) platform.

MediaTek’s AUTUS I20 (MT2712) is a high-performance, hexa-core infotainment system and has a flexible interface to support multiple displays. It links drivers to their vehicles to improve the driving experience, passenger safety, connectivity and entertainment, providing information and content from the car’s sensors and multimedia sources.

Maxim’s advanced GMSL SerDes technology delivers robust video distribution for these surround-view applications, says the company. One MAX9286 automotive deserialiser and four MAX96705 serialisers provide synchronised video streams from four cameras via 15 meters of shielded twisted-pair (STP) or coaxial cable.

To support data transmission for auto sensors, entertainment content and navigation, designers required a higher-speed, higher-voltage memory technology. This was achieved using Maxim’s MAX20010 high-current, 6.0A buck converter with dynamic voltage scaling, reports Maxim. It enabled MediaTek to migrate to a higher voltage memory.

Maxim’s GMSL SerDes technology extends data transmission distance from 12 to 15 metres with the MAX9286, and also provides surround-view application support with a single chip via frame synchronisation on four input channels enabling higher system performance by offloading the SoC. Support for MIPI-CSI-2 output enables seamless interoperability with MediaTek’s SoC and spread-spectrum features reduce electromagnetic interference (EMI) to improve safety and performance.

The GMSL SerDes technology provides data integrity over 15 meters.

With dynamic voltage scaling (DVS), Maxim’s MAX20010 high-current buck converter allows Autus I20 designers to upgrade to fast, higher voltage 4Gbyte LPDDR4/DDR4 memory, for sufficient power to support multiple video-rich applications across in-car displays. Maxim’s buck converter also provides skip mode to save power consumption when the MediaTek IVI is running at light load.

Maxim Integrated develops analogue and mixed-signal products and technologies to make systems smaller and smarter, with enhanced security and increased energy efficiency. The company powers design innovation for customers in automotive, industrial, healthcare, mobile consumer, and cloud data centre markets.

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