Re: [Openbts-discuss] High accuracy 10Mhz external clock

[Mathew S. <ms...@gm...>]

I checked with Jackson after originally buying them... the only way to
get the 3v is to buy a large quantity order. On the surface both
clocks look the same... but internally is the difference. While they
may work I worry what may happen by running so much voltage...

-Mat

On Thu, Jul 23, 2015 at 2:53 AM, Robert Light <rob...@gm...> wrote:
> Hi Mathew,
> We bought the Jacksons part not directly from Jacksons but from some distributor in Europe(I don't remember the name) a long time ago.
> We didn't use it with B200, but we did use it with Ettus product and everything was ok. It is possible that the parts we bought were somehow modified, although it doesn't look so at the first glance.
> Anyway if you check the datasheet it says "3V3 optional":
> http://www.jackson-labs.com/assets/uploads/main/LC_XO_specsheet.pdf
> So maybe you just ordered a wrong part nr?
>
> We use now our own GPSDO. It doesn't fit the socket on B200 directly but it does the job.
>
> Robert
>
>
>> Gesendet: Donnerstag, 23. Juli 2015 um 09:33 Uhr
>> Von: "Mathew Solnik" <ms...@gm...>
>> An: "Robert Light" <rob...@gm...>
>> Cc: "Ganzorig Ulziibayar" <gan...@gm...>, "ope...@li..." <ope...@li...>
>> Betreff: Re: [Openbts-discuss] High accuracy 10Mhz external clock
>>
>> Hello Robert,
>> Have you actually used the one purchased from Jackson? I purchased a
>> few not too long ago (after having purchased the Ettus GPSDO) and can
>> say they are actually NOT the same. The ones sold by Ettus are a
>> custom 3v model while the Jackson are 5v. While they do pin match and
>> pretty much everything else appears the same the voltage is different.
>> I luckily noticed before putting them on my boards but unfortunately
>> Jackson did not seem interested in accepting returns (if anyone is
>> interested in trying their hand at making them work let me know... I
>> have extras).
>>
>> Ganzorig Ulziibayar - If you are looking for an inexpensive ready to
>> go solution I would recommend Fairwaves clocktamer - they seem to be
>> the best overall bang for the buck that do not require any custom
>> modifications.
>>
>> -Mat
>>
>> On Tue, Jul 14, 2015 at 12:16 AM, Robert Light <rob...@gm...> wrote:
>> > It is the same device. Download the datasheet from Jackson Labs and compare
>> > yourself.
>> > Or just search internet for photos of both devices and you will see that it
>> > is the same device. It is a standard Ettus policy to charge twice
>> > what it cost to source the parts. And it is literally half price.
>> > Compare the two pictures below and spot 10 differences, then buy me beer :)
>> > http://www.ettus.com/content/images/ocxo_320x280.jpg
>> > http://jaunty-electronics.com/blog/wp-content/uploads/2012/10/LC_XO_both.jpg
>> >
>> >
>> > Gesendet: Montag, 13. Juli 2015 um 17:19 Uhr
>> > Von: "Ganzorig Ulziibayar" <gan...@gm...>
>> > An: "Robert Light" <rob...@gm...>
>> > Cc: ope...@li...
>> > Betreff: Re: High accuracy 10Mhz external clock
>> > You mean the pins will match exactly the same?
>> >
>> > On Mon, Jul 13, 2015 at 11:10 PM, Robert Light <rob...@gm...> wrote:
>> >>
>> >> Ettus GPSDO is the same as lc_xo made by Jackson-labs:
>> >> http://www.jackson-labs.com/index.php/products/lc_xo
>> >>
>> >> The only difference is that you can get it from Jackson Labs half price :)
>> >
>> >
>> > ------------------------------------------------------------------------------
>> > Don't Limit Your Business. Reach for the Cloud.
>> > GigeNET's Cloud Solutions provide you with the tools and support that
>> > you need to offload your IT needs and focus on growing your business.
>> > Configured For All Businesses. Start Your Cloud Today.
>> > https://www.gigenetcloud.com/
>> > _______________________________________________
>> > Openbts-discuss mailing list
>> > Ope...@li...
>> > https://lists.sourceforge.net/lists/listinfo/openbts-discuss
>> >
>>