Probably the most famous chip ever made was the 555. Hans Camenzind recalled how he designed it. “In 1967 designing repeatable integrated tuned circuits was impossible. I was interviewed by Signetics that year and proposed that they let me try to designe one using a phase-locked loop. “I found the PLL in a 1935 Proceedings ...
Read full article: Designing The 555, by Hans Camezind
from Electronics Weekly http://www.electronicsweekly.com/blogs/mannerisms/yarns/designing-555-hans-camezind-2017-02/
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