USE OF DESIGN-OF-EXPERIMENTS TO ESTABLISH COMPONENT TOLERANCES FOR A PHASE-LOCKED LOOP PULL-IN RANGE.

Determining an analytical relationship among the variables in a phase-locked loop type of circuit - essential for establishing tolerances of key components - has been difficult because of the complexity involved, and conventional modeling approaches have been inadequate. This invention entails usage of a design-of-experiments model employing linear regression techniques to enable the necessary analysis of circuit performance and the determination of tolerance levels.