Modeling and measurement of supply noise induced jitter in a 12.8Gbps single-ended memory interface

Abstract

Analyzing power supply noise characteristics and predicting its jitter impact is critical in designing the 12.8Gbps single-ended memory interface achieving better than 5mW/Gbps energy efficiency. The clocking circuit jitter performance is characterized by jitter sensitivity. The power supply noise induced jitter (PSIJ) is derived by combining the noise spectrum and sensitivity profile. The final PSIJ prediction matches closely with the on-chip measurement result.