CLOCK ARCHITECTURE FOR A FREQUENCY-BASED TESTER

摘要

A CLOCK SYSTEM IS DISCLOSED FOR DISTRIBUTING AND GENERATING A DIGITAL CLOCK SIGNAL FOR A PLURALITY OF ELECTRONIC ASSEMBLIES. THE CLOCK SYSTEM INCLUDES A REMOTE FIXED-FREQUENCY CLOCK FOR GENERATING A FIRST CLOCK SIGNAL OF A FREQUENCY AND A PLURALITY OF LOCAL CLOCK MODULES. THE LOCAL CLOCK MODULES ARE RESPECTIVELY DISPOSED ON THE PLURALITY OF ELECTRONIC ASSEMBLIES AND EACH INCLUDE SYNTHESIZER CIRCUITRL FOR CREATING A VARIABLE CLOCK SIGNAL OF A DIFFERENT FREQUENCY THAN THE FIRST FREQUENCY. FANOUT CIRCCUITRY IS COUPLED BETWEEN THE REMOTE FIXED FREQUENCY CLOCK AND THE PLURALITY OF LOCAL CLOCK MODULES TO DISTRIBUTE THE FIRST CLOCK SIGNAL.