Question 1

I am pretty novice. can someone provide a circuit to generate 16MHz clock using this oscillator?

Accepted Answer

I used this to build a bareduino, which is an arduino built from scratch. However these are pretty common in household electronics, such as alarm clocks, ex cars, etc. I would recommend going to your local library and researching electronics for beginners. I would also recommend checking out arduino boards and the endless possibilities with this board and many others, if you are into light programming. Hope this helps.

Question 2

2 unmarked leads and case ground. How do you connect this item with a 20 pf cap to make an oscillator?

Accepted Answer

All depends on your application, I used it to give a heart beat to a micro-controller, so it doesn't matter if you use one pin or the other as a positive or negative, one pin goes to to OSC1/CLK1 and the other to OSC2/CLK2 of the micro-controller, and from each pin of the crystal one capacitor to ground, usually it is from 20 to 56 pF.

Question 3

volts? watts? amp?

Accepted Answer

Very simple... Volts (Watts??) Amps simply don't apply here.As you 'Might" Possibly later learn, crystals are a most complex subject.However, I've used many of those crystals and keeping in mind "Some" of the above caveats mentioned above, you should have no issuesSuffice it to say that the crystals offered here will work just fine.One... of posibly two?... caveats here are most inportant... On a PCB with the 'xtal' mounted very close to the uProc the "standard 22 PF" loading caps will work very well.However your results Will vary greatly with 1, Long wires 2, con grounding the Xtal loading caps as CLOSE to the uProc Dgnd as possible...The worst possible configuration is 'trying' to use 22PF caps on a breadboard as the 'strips' from each pin 'can' add as much as 7.5 to 10 Pf additional loading capacity.I've had to pull the 22PF cap's (one or both) from the breadboard

Question 4

Does anybody know the Eagle Cad package to use for these in schematic/board design?

Accepted Answer

Of I recall there were several.  Just ignore the frequency rate when searching, many come in the same package.  If I recall, I just searched oscillator.   Of course,  I always recommend double checking the dims with a cheap digital caliper.

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uxcell 50 Pcs 16.000MHz AT49S 20PF DIP Quartz Crystal Oscillator

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