These industry standard footprint buffers are fixed-function replacements for some of the most popular buffers in the market. Note however, these parts are not just footprint compatible, they will also bring to the clock tree a guaranteed maximum jitter specification, on-chip voltage regulation for excellent PSRR, superior input clock noise isolation, and short production lead times. Most suppliers will not specify a guaranteed maximum jitter specification, and when they do it is for a very specific operating condition, maximum jitter is specified for all Si533xx part numbers over the entire voltage supply and temperature ranges. Maximum jitter for these high performance buffers is 200 fs-rms. For a specific part’s max jitter specification, please refer to the product data sheet.