The working principle of CDR involves multiple complex and delicate links, and is mainly implemented by key technologies such as phase-locked loop (PLL) and data sampling. In an era where information travels at the speed of light, optical modules, as the "bridge" of network communications, undertake the important task of converting electrical signals and optical signals, allowing data to be transmitted rapidly in optical fibers. Clock and data recovery (CDR) in retimers reduce noise and jitter in data signals, extend system link reaches and lower achievable bit error rates and enable system compliance to high-speed standard specifications. What function do CDRs perform in retimers? Retimer TX Retimer RX In addition to the. Clock recovery is the process of extracting timing information from a data stream to allow the receiver to decode the transmitted data. This blog dives deep into what CDR is, why it's indispensable in modern optical communication, and how it empowers devices like optical transceivers to perform flawlessly.
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