Hi. I'm wanting to use an external clock sync on the LMZM33603. From the preliminary datasheet (SNVSAO6) dated 9/2017, I see a table of values for the switching frequency vs. the Rrt value. However, when I use the formula (3) to calculate the values they do not match the table values. For example, If I want to switch at 500kHz rather than the default of 400kHz, the formula calculates to (40200/500)k - 0.6k = 79.8kΩ. But the tables gives a value of 78.9kΩ for this frequency. the default (400kHz) does work out correctly to a 100kΩ resistor. I checked a few other frequency values as well and they don't match the formula. Which values should I use and is the formula correct?
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