The Research on Frequency Extension of ATE Based on Phase-Locked Loop and Frequency Divider
In today's highly competitive market environment,cost sensitivity is continuously increasing.In the electronics manufacturing industry,the tension between the scarcity of high-speed board resources and the demand for increased production capacity creates a critical contradiction,urgently necessitating an economical and efficient testing solution to replace high-speed boards.This paper introduces a novel approach utilizing the LMXxxx phase-locked loop circuit and HMCxxx frequency divider circuit,which can extend the frequency capability of ATE boards,enabling the testing of high-speed chips on low-speed ATE machines.This innovative method successfully breaks the 800 MHz maximum testing bottleneck of low-speed ATE machines,providing new possibilities for high-speed circuit testing.
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