Dear teams,
I use the passive probe to measurement 32k start-up time ,but my boss tell me is wrong .The passive probe has the about load effect. Can you tell me how to correct measurement
Thanks
Hi Vic
it is necessary to use high impedance probe, also may be useful to look at
AN2907 32 kHz Oscillator Start-up Time and POR Pulse Width Considerations
https://www.nxp.com/docs/en/application-note/AN2907.pdf
Best regards
igor
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Hi igorpadykov,
Thanks for the useful reply.
I use one probe not only has high impedance but also has high load capacitance.
According to the application note : Adding capacitance will affect oscillator performance. It let me confuse
Thanks