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CLaud.1
CLaud.1
Visitor II
Oct 2, 2020 5:51 PM UTC
Solved

For the STM32F105, what parameters (besides frequency) of a crystal oscillator should you consider when looking for one?

Does load capacitance matter for a given device? Or does that only effect the caps you pair with the oscillator?

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TDK
TDKBest answer
Oct 2, 2020 6:15 PM UTC

Load capacitance can matter.

Please see:

https://www.st.com/resource/en/application_note/cd00221665-oscillator-design-guide-for-stm8afals-stm32-mcus-and-mpus-stmicroelectronics.pdf

In general, most crystals will work. You could also just choose one already on an ST board to be safe without doing any work.

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1 reply

TDK
TDKBest answer
Oct 2, 2020 6:15 PM UTC

Load capacitance can matter.

Please see:

https://www.st.com/resource/en/application_note/cd00221665-oscillator-design-guide-for-stm8afals-stm32-mcus-and-mpus-stmicroelectronics.pdf

In general, most crystals will work. You could also just choose one already on an ST board to be safe without doing any work.

"If you feel a post has answered your question, please click ""Accept as Solution""."
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