GPIO Pins of ADAU1701 - Pullup resistor needed?
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Page 45 of the ADAU1701 datasheet states that "Every MP pin has an internal 15 kΩ pull-up resistor." In that case why do we need 10k resistors for these pins when used as input pins, as shown in AN-951 such as Figure 1? Can I eliminate them in my design when I know for sure they will be used only as inputs? (I have tried using them as inputs without pullups with no issues so far.)
Thanks - Ram
Audio Signal Processors
pullup
SigmaDSP Audio Processors
gpio
adau1701
Dear ADI Engineers,
Request your helpful input please! A customer design is held up on account of this question.
Thanks!
-Ram
Hi Ram,
Since there is an internal pull-up, the external pull-up is redundant and therefore optional.
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