[time-nuts] Thunderbolt schematics

[Azelio Boriani]

Magnus, you said it:
>The GPS front-end chip I haven't been able to find a datasheet for
>the CPU/GPS-baseband chip seems to be an ASIC
Quest for the HolyGrail...

On Wed, Dec 12, 2012 at 12:23 AM, Bruce Griffiths <
bruce.griffiths at xtra.co.nz> wrote:

> Magnus Danielson wrote:
>
>> On 12/11/2012 11:50 PM, Azelio Boriani wrote:
>>
>>> I think that the TBolt's schematic(s) are sort of HolyGrail for TimeNuts.
>>>
>>
>> They are pretty simple, so I am amazed that there has been no major
>> attempt to reverse engineer them. The GPS front-end chip I haven't been
>> able to find a datasheet for, and then the CPU/GPS-baseband chip seems to
>> be an ASIC, but most pins should be fairly simple to explain.
>>
>> I have only one Tbolt, so I don't want to put that into pieces (again).
>>
>> Cheers,
>> Magnus
>>
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>>  I have 4, two of which have had the low phase noise OCXO removed for use
> in a PN interferometer.
> The TBolt output buffer has relatively high phase noise.
>
> Bruce
>
>
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