Lin Wu, product marketing manager with the Interface and Clock Products group at Texas Instruments, holds a PhD in electrical engineering from Iowa State University, Ames, and currently holds three U.S. patents. Email address: ti_linwu@list.ti.com Web site: http://www.ti.com
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October 8, 2009[Design View / Design Solution] Control Jitter And Interference During Clock Distribution
Several practical issues must be addressed when designing the clock tree for a system running synchronously at high speed. First is the signal integrity of the clock itself, i.e., maintaining low jitter and low distortion all the way to the receiver. Second is controlling clock interference with other parts of the system, as well as compliance with electromagnetic- interference (EMI) regulations. These issues are easy to understand, but hard to practice...