GMSL serializer for automotive video links
The Maxim MAX9259GCB/V+T is a Gigabit Multimedia Serial Link (GMSL) serializer that converts 30 parallel CMOS/LVCMOS inputs into a single serial CML output stream at up to 2.5 Gbps. It is designed for in-vehicle video and data transport — typically driving a camera module or display panel over a single coaxial or STP cable. The device is AEC-Q100 qualified and specified across the -40 to +105°C ambient temperature range, which covers cabin and under-hood environments in passenger and commercial vehicles.
What the 2.5 Gbps serial data rate means for the link
At 2.5 Gbps the serial output can carry a 1080p60 video stream with embedded audio and control data over a single coax or shielded twisted pair. The CML output level and input termination are matched for the GMSL protocol, so the serializer pairs directly with a GMSL deserializer (e.g., MAX9286) without external level-shifting. The 30 parallel inputs give enough lanes for a 12-bit or 24-bit pixel bus plus horizontal/vertical sync and a few auxiliary GPIOs.
64-TQFP exposed pad — thermal and layout notes
The pad also serves as a low-inductance ground return for the high-speed CML output. Surface-mount assembly is standard, but the pad requires a solder paste stencil opening that matches the datasheet footprint recommendation.