Hi you Quartz and CKOPT tamers out there ;-) I came across a nice set of documents about Crystal oscillator design located at: http://gaia.ecs.csus.edu/~bist/pll_team_docs/papers.html The fist one (by Vittoz et. al.) is a little bit on the theoretical side, but the "Fox files" counterweight this with short practical application notes. If you look at Vittoz' short CV at the end of the first document, you understand his 'professional fable' for ultra low power designs. Have a nice read, Stefan
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Quartz Oscillator design info (was: atmega8 won't start)
2006-04-07 by Stefan Wimmer