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PostPosted: Thu Sep 15, 2016 12:24 am 
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Title says it all.


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PostPosted: Thu Sep 15, 2016 1:43 am 
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Maybe something like these
* http://www.next.gr/uploads/12/MMCC-1-circuits.jpg
* http://wilsonminesco.com/6502primer/ClkGen.html


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PostPosted: Thu Sep 15, 2016 4:08 am 
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leepivonka wrote:

I've never given any thought to an oscillator with a frequency that low, but I put links at the middle of that page (http://wilsonminesco.com/6502primer/ClkGen.html) to a couple of Fairchild ap. notes about CMOS oscillators which should help.

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PostPosted: Thu Sep 15, 2016 6:40 am 
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GARTHWILSON wrote:
leepivonka wrote:

I've never given any thought to an oscillator with a frequency that low, but I put links at the middle of that page (http://wilsonminesco.com/6502primer/ClkGen.html) to a couple of Fairchild ap. notes about CMOS oscillators which should help.

How about one of these? :D

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PostPosted: Thu Sep 15, 2016 6:48 am 
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We talked about building oscillators around crystals here:
viewtopic.php?p=17401#p17401

That was at MHz frequencies, but the principles are probably the same. This app note might help:
http://www.ti.com/lit/an/snoa676/snoa676.pdf


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PostPosted: Thu Sep 15, 2016 6:50 am 
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(Thanks BDD: your link is to the MK3200, "IDT’s lowest cost, low power clock oscillator that generates a low power 32.768 kHz output from an inexpensive 32.768 kHz crystal. This part includes a power down pin and allows you to tri state the output clock for in-circuit testing"
- http://www.idt.com/products/clocks-timi ... oscillator
)


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