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Old 10th Feb 2019, 8:56 pm   #34
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
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Default Re: Turntable Stroboscope

It's a complete crystal and oscillator circuit in one package with an accuracy spec that encompasses the whole thing. Logic level outputs, so you power it from 5v and feed its output into pin 11 of the 4060. don't fir the rest of your oscillator circuit and leave pin 12 not connected to anything.

Excess heat in a CMOS logic part means something is either running at high frequency or is stuck between logic levels where the thing tries to operate in an analogue way and can waste current from the supply down through two transistors to ground. This makes heat.

I'd suspect spurious oscillation of some sort.

David
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