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PCA9615 Termination

Question asked by HENRY YING on Jan 8, 2019
Latest reply on Jan 21, 2019 by G.w. Sun

According to the datasheet, the output impedance is 100 Ohm differential. On page 9, it mentioned 'R2 is 120, R1 is 600, The parallel combination yields a termination of 100'. How this was calculated? Two R1s should be in series then parallel with R2. Then R1 should be 300 Ohm to yield a combination 100 Ohm. Did I miss anything? May I use R2=100Ohm and R1=10k to reduce the current?