Working of SerDes
A SerDes interface is a critical component in modern high-speed communication systems. It manages the transmission and reception of data between the digital and analog domains allowing the data to be efficiently transmitted over various media such as copper traces or backplanes.
- Data Serialization: In the transmission process, the SerDes takes parallel data streams and converts them into serial bit stream. This serialization reduces the number of physical wires required for the transmission enabling higher data rates over limited channels.
- Data Deserialization: At the receiving end, the SerDes performs the reverse operation. It takes the incoming serial data and converts it back into parallel data restoring the original information.
- Clock Recovery: To maintain synchronization between transmitter and receiver SerDes interfaces typically embed a clock signal within serial data stream or use a dedicated clock lane. The Clock recovery circuits at the receiver extract this clock signal.
- Encoding and Decoding: The SerDes often employs encoding schemes such as 8b/10b or 64b/66b to ensure data integrity and support features like error detection and correction. These schemes add extra bits to the data for the encoding and remove them during the decoding.
High-Speed SerDes (Serializer-Deserializer) Interfaces
In this article, we will learn about High-Speed SerDes (Serializer-Deserializer) Interfaces. A High-Speed SerDes interface is a crucial component in modern electronic systems designed for the transmitting and receiving of high-speed digital data between integrated circuits or systems. It converts parallel data into a serial stream for transmission over high-speed channels and then reverts the serial data back to parallel at the receiving end.
Table of Content
- What is Serializer and Deserializer?
- Types of SerDes
- Working of SerDes
- How to Design SerDes?
- The Four Serializer/Deserializer Architectures
- Why Do We Need Serializer/Deserializer (SerDes)?
- Differences Between Parallel and Serial SerDes
- Properties and Characteristics of SerDes
- Challenges, Need and Demand for High-Speed Circuits
- Advantages and Disadvantages of SerDes
- Applications of SerDes
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