Fei, I'm glad that worked for you, but I'm not sure that was exactly the original problem. I think the original intent was to low pass filter the supply to make sure the supply was well behaved. Since the supply current is typically lower than 500uA (or equal to that at the highest data rates), there isn't going to be much drop across this resistor (only 5mV with the 10Ohm resistor). Anyway, if the device is now working. I can't argue with it. Let me know if you have any other questions. Joseph Wu
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