Question: Why do some communication standards use 8b/10b encoding?
Answer:
8B/10B encoding ensures the correct function of the link by providing the following: - A minimum transition density to allow the serial receive PLL to extract a clock from the data stream. - A DC-balance in the signaling to reduce data baseline wander - Run-length limits in the serial data to limit the bandwidth of the serial link - A means of framing the remote receiver
