Analysis and Calculation of Transfer Functions Relating Power Supply Noise to Jitter Based on Output Buffer of LVSTL Interface

As the I/O speed increases up to multi-gigabit data rates, the jitter budget for I/O interface decreases, and precisely estimating jitter has a significant effect on designing communication systems with good robustness. Among all the causes of jitter in high-speed I/O interface, power supply noise is an important jitter source. This paper proposed an analytical calculation method of transfer functions relating power supply noise to jitter for low voltage swing terminated logic (LVSTL) interface of low-power double data rate fourth generation (LPDDR4). The simulation results show that the proposed analytical calculation method is in good agreement with the ADS simulated results.