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[tacgps] Query: Interest in clock synthesizer

John Ackermann N8UR jra at febo.com
Fri Oct 6 20:11:59 UTC 2006


There are lots of different possibilities (and we need to start building
a database) but in most PCs the 32.768 kHz (I think you meant kHz rather
than MHz) runs the real time clock and you don't need to mess with that
unless you want to keep time while the system is shut down.  The
14.318... is likely to be the system clock, and that's the one you'd
replace.

John
----

Mark Miller said the following on 10/06/2006 03:42 PM:
> I looked inside my ASUS K7M which is using a 500 MHz processor and I see
> two crystals.  One is 14.318 MHz and one is 32.768 MHz.  I think the
> 32.768 is for the real time clock.  From the chart on
> http://www.febo.com/time-freq/hardware/ICS525/ it looks like I am going
> to replace the 14.318 MHz crystal with the clock block?
> 
> 73,
> 
> Mark N5RFX
> 
> At 02:21 PM 10/6/2006, you wrote:
>> Mark Miller said the following on 10/06/2006 02:59 PM:
>> > Does this hardware replace the motherboard clock crystal?
>> >
>> > 73,
>> >
>> > Mark N5RFX
>>
>> Yes, that's the intent.  You wire the Clock-Block in to replace the
>> crystal or oscillator on the motherboard, and then feed it with an
>> external high-quality signal.
>>
>> Look for an announcement about availability in the next week or two;
>> we're just getting started with manufacture.
>>
>> John
>>
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> 
> 
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