nRF51422 startup time for 32kHz

[takin]

Hello I have a question for startup time for 32kHz of nRF51422. nRF51422_PS v3.1 indicates startup time for 32kHz typ 0.3sec.

What is this spec minimum value. I’d like to know approximately value of this spec.

[Håkon Alseth]

This is unique for each type of external crystal, depending on what physical parameters this crystal has. You'll have to measure it with your chosen 32.768 kHz crystal.

Cheers, Håkon