This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DS90UB921-Q1: DS90Ux925 PDB issue

Part Number: DS90UB921-Q1

Hi team

As the datasheet says:

If the PDB pin is not controlled by a microcontroller, a large capacitor on the pin is needed to ensure PDB arrives after all the VDDs have settled to the recommended operating voltage. When PDB pin is pulled to VDDIO = 3.0V to 3.6V or VDD33, it is recommended to use a 10 kΩ pull-up and a >10 uF cap to GND to delay the PDB input signal.

My question is, what would happens if the cap is not large enough? or say, what would happens if PDB pulls high when VDDs have not settled to stable voltage?

Thanks