Gigabit Multimedia Serial Link (GMSL) cameras respond to the need for high-speed data transmission at a decent distance. Analog Devices introduced the GMSL interface and SerDes technology to create an alternative to standard image sensor interfaces. In common cameras image sensor is usually placed close to SoC (System On Chip) and connected directly over one of the standard interfaces (like MIPI CSI-2).
Camera sensors connected to an SoC, and that SoC has only one interface for connection
Camera sensors connected to an SoC, but located meters apart
Camera sensors and an SoC are located in different units
There is no place inside camera housing for an SoC
Remote LCD connected to an SoC



Up to 6 Gbit/s
Up to 8MP resolution
Bandwidth suitable for 4K @ 30 fps
Up to 15 meters distance via single coax or STP cable
Almost 0 latency transmission of uncompressed data
Ability to multiplex additional metadata along with video
Provide enough power for camera and additional equipment such as IR projector
GMSL Serializer converts parallel data streams into serial data streams of higher frequency. Then Deserializer converts the received serial data stream back into a parallel data stream.
Designing solutions with SerDes is challenging, including both Electronic Engineering and Software / Driver effort to ensure operational excellency.
Developing SerDes camera design from scratch would most likely result in a longer project duration, impacting both the schedule and budget.
With decades of experience in imaging solutions, sensor driver development, and GMSL SerDes components, Rhonda Software is now offering off-the-shelf GMSL2 solutions that can be used with a flexible level of customization.
Rhonda Software provides an end-to-end solution for the evaluation of GMSL2 Camera modules with the help of the Rhonda GMSL2 camera kit. Customization is available, provided there is compatibility. Rhonda Software offers services from image sensor driver development to image quality tuning. Please reach out to discuss your specific customization requirements.
End-to-end setup for video capture by camera module, GMSL2 transmission, processing on SOC and output to host device
4K@30 H.264 encoded video streaming via UVC
Camera module is based on Sony IMX577 optical module and GMSL2 serializer board
Compute module is based on Rhonda H22 SOM and GMSL2 deserializer board
Up to 15m transmission distance via FAKRA-Z coaxial cable
If you worked on the Ambarella processors before then you might be familiar with H22 Video SoC unique architecture and 14-nm process technology that minimizes H22 power consumption while maximizing performance. If you are not familiar, then it is good to mention that Ambarella is an exclusive semiconductor manufacturer with a specialisation in intelligent camera applications, offering a proven path to mass production. Rhonda GMSL2 Camera Kit is available on the Ambarella H22 SoC / Rhonda H22 SoM.
