Real-time network synchronization for engineers has also become easier


NXP Semiconductors announced that its Audio Video Bridging (AVB) stack software has obtained AVnu certification. NXP expects that this certification will accelerate the development and market launch of industrial, automotive, and professional AVB network products.

The AVB stack synchronizes devices over Ethernet for applications requiring audio, video, and other real-time content, providing deterministic latency. Additionally, customers can develop advanced AVB applications for professional audio equipment, Vehicle-to-Everything (V2X), and Information Entertainment technologies.

AVNU certification promotes the establishment of an interoperable network ecosystem and enables engineers to easily perform network synchronization. This certification is designed to address existing issues regarding accurate timing and real-time synchronization, bandwidth conservation, and traffic configuration. Additionally, it offers the benefit of reducing system deployment, maintenance, and overall investment costs.



Jean-Christophe Bode, Senior Director of Software at NXP, said, “As in-vehicle systems increase and complexity grows, the acquisition of AVnu certification is on the rise.” “The purpose of obtaining AVnu certification is to ensure that all components of the audio-visual bridge system work together organically,” they stated, adding, “it will realize the company’s vision of simplifying the product development process and reducing the time to market for AVB applications.”

NXP's AVB stack includes features such as time synchronization, low-latency streaming services, and bandwidth conservation. It transmits audio and video signals over standard Ethernet lines to play video across multiple screens and resolves synchronization issues between audio and video streaming. AVnu-certified software covers all AVB protocols used in NXP's i.MX 6 and i.MX 8 applications and also supports some of NXP's other development boards. This reduces issues associated with hardware changes and lowers redevelopment costs. Furthermore, it enables the configuration of future distributed systems that include NXP's audio tuners and amplifiers.

To ensure high reliability, in addition to clock master and data traffic functions, it features precise timing capabilities to support low-jitter media clocks, independent traffic classes to optimize network resources, and bounded latency capabilities to ensure packets arrive at the right time and place. Along with the AVB stack, NXP plans to provide APIs to support audio and video applications.