Chapter 9. Clock Synthesis, Phase Locked Loops, and Clock Recovery

Jim Stimple

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This chapter covers the basic design and measurements of the clock generation and recovery portion of high-speed digital communications systems. As discussed in Chapter 1, the characteristics of the clock signal and the way the receiver gets the clock are extremely important in jitter-limited systems. Phase noise and its counterpart, jitter spectrum, are a measure of the frequency stability of a clock source. All clocks exhibit some level of frequency instability, which results in jitter of transmitted data. A portion of the system jitter performance and subsequently ...

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