Hi Team,
Our customer had designed DP159 control pins based on the related thread which recommended pull-up and pull-down resistor is 68k Ohm, tolerance is +/-1%. (EVM uses 65k Ohm.)
With this pull-up and pull-down resistor the voltage observed at the pins are the followings.
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Pull-Up : 2.54V
Pull-Down : 0.42V
Floating : 0.82V
VCC : 3.32V
VDD : 1.09V
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Required pin voltage for DP159 is below.
Do you have any idea why this may happen ? Is the requirement of 65K Ohm +/-10% tolerance the correct recommended pull up/down resistor range ?
Your advice is greatly appreciated.
Best Regards,
Kawai