February 10, 2012 -- A multisource clock tree is a hybrid containing the best aspects of a conventional clock tree and a pure clock mesh. It offers lower skew and better on-chip variation (OCV) performance than a conventional clock tree; lower clock tree power/area; and a shorter, easier flow compared to a pure clock mesh implementation. A renewed emphasis on high-frequency clock design has heightened interest in multisource clock-tree synthesis (CTS). This article provides a tutorial on how to implement a multisource CTS design.
By Harvey Toyama. (Toyama is a product marketing manager at Synopsys, Inc. with a focus on clock-tree synthesis.)
This brief introduction has been excerpted from the original copyrighted article.