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It's hard to build an oscillator

(lcamtuf.substack.com)
219 points chmaynard | 3 comments | 21 Nov 25 07:45 UTC | HN request time: 0.671s | source
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ZyanWu ◴[21 Nov 25 10:46 UTC] No.46003220[source]▶
What intrigued me was the "just use a microcontroller" comment at the bottom of the page - I genuinely don't know if it was pinned because it's a joke, a genius idea or just top 10 dumbest comments of 2025
replies(2): >>46003994 #>>46005440 #
1. mindcrime ◴[21 Nov 25 15:30 UTC] No.46005440[source]▶
There is always https://en.wikipedia.org/wiki/Direct_digital_synthesis, FWIW.
replies(1): >>46010087 #
2. ZyanWu ◴[21 Nov 25 23:00 UTC] No.46010087[source]▶
Yes but DDS doesn't use a uController and still needs a stable reference clock/frequency/oscillator
replies(1): >>46010641 #
3. mindcrime ◴[22 Nov 25 00:07 UTC] No.46010641[source]▶
It's oscillators all the way down... :-)