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Re: Crystal oscillator oscillation startup


 

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There are variety of problems that need fixing first, most importantly: all your N channel? devices are upside-down. I don't actually see a crystal in your schematic, but that's secondary.

My advice is to start small. Make an inverter. Test it - does it work?

Have you tested any part of this schematic? If this is your first attempt, you stand zero chance of drawing it all out and having it to work first time.

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Regards,
Tony

On 02/05/2025 15:20, Cheng Fei Phung via groups.io wrote:

Here is an initial circuit draft of a crystal oscillator :?ck_osc.zip ? ? ? ? ??
?
I have so far checked the circuit operating points according to the circuit requirements.
However, it just does not start to oscillate.
?
I am a circuit beginner noob, please feel free to point out mistakes and guide me to solve the oscillation startup issue.

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