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Reason for R29 (R35 2010) 18 Ohm Resistor
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Reason for R29 (R35 2010) 18 Ohm Resistor

by josh_ridez on Sun Mar 30, 2014 12:26 pm

I am wondering why there is a 18 ohm series resistor connected in series between the 2.5V regulator and the PLL (R29 for RC1A or R35 or 2010 version). I have looked at the datasheet for the PLL and none of the example schematics include this resistor.

Thanks.
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Re: Reason for R29 (R35 2010) 18 Ohm Resistor

by lightningserpent on Tue Apr 01, 2014 7:52 pm

Isn't it just a power supply filter for the PLL charge pump?

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Please be positive and constructive with your questions and comments.