[time-nuts] FE-.5680A trimming resolution

Azelio Boriani azelio.boriani at screen.it
Tue Jan 31 16:35:15 EST 2012


The Navsync FTS125 is an example where the GPS receiver engine (the CW25)
is driven by a 20MHz fixed OCXO. At the moment I don't know if the CW25 of
the FTS125 has a specific firmware for that but I suspect that it must be
so. In my opinion it is best to have a tunable OCXO (like the TBolt) to
have the best performance.

On Tue, Jan 31, 2012 at 10:19 PM, cfo <xnews2 at luna.kyed.com> wrote:

> On Tue, 31 Jan 2012 21:47:15 +0100, Attila Kinali wrote:
>
> > STM32-F2/F4 (ST): ST doesn't want to give me the documentation to those.
> > (website fails w/o error message)
>
> I have no probs with the ST site (Discovery-F4)
> http://www.st.com/internet/evalboard/product/252419.jsp
>
>
> You want these for the MCU
> http://www.st.com/internet/mcu/product/252140.jsp
>
> DataSheet
> http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/
> DATASHEET/DM00037051.pdf
>
> Errata
> http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/
> ERRATA_SHEET/DM00037591.pdf
>
> Reference Manual
> http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/
> REFERENCE_MANUAL/DM00031020.pdf
>
>
> CFO
>
>
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