JESD204B: High-Speed Serial Interface for Data Converters

JESD204B is a high-speed serial interface standard developed by the JEDEC Solid State Technology Association for data converters. It is designed to provide a high-speed, low-latency interface between data converters and digital signal processing (DSP) devices, such as FPGAs and ASICs.

The JESD204B standard defines the physical layer, data link layer, and transport layer of the interface. It supports data rates of up to 12.5 Gbps per lane, with up to 16 lanes for a total data rate of 200 Gbps. The interface also supports various encoding schemes, including 8b/10b, 64b/66b, and 128b/130b, to ensure reliable data transmission.

One of the key features of JESD204B is its synchronization capabilities. The interface supports deterministic latency, which allows for precise synchronization between multiple data converters and DSP devices. This is critical for applications that require high-precision timing, such as radar systems and medical imaging equipment.

Another advantage of JESD204B is its ability to reduce the number of interface connections required between data converters and DSP devices. With up to 16 lanes per interface, JESD204B can replace multiple parallel interfaces, simplifying system design and reducing board space and power consumption.

Overall, JESD204B is a high-performance, reliable interface standard that is widely used in a variety of applications, including aerospace and defense, communications, and industrial automation.