[Hackrf-dev] 10MHz clock

[Michael Ossmann]

I suspect that the 2.5 V signal from the Thunderbolt would work.


On Mon, Aug 18, 2014 at 11:48:46PM -0700, Karl Koscher wrote:
>
> According to the HackRF schematic, CLKIN expects a 10 MHz, 3.3V CMOS
> signal. According to http://www.perdrix.co.uk/FrequencyDivider/, the
> Thunderbolt has a 2.5V peak-to-peak AC signal, so it needs to be run
> through a clock shaper to drive the HackRF.
> 
> But this is just a guess.
> 
> 
> On Mon, Aug 18, 2014 at 11:18 PM, Simon Brown <simon at sdr-radio.com> wrote:
> 
> > Hi,
> >
> >
> >
> > Would a Thunderbolt signal lock on a hackRF?
> >
> > BTW is it hackRF or HackRF ???
> >
> >
> >
> > Simon Brown G4ELI
> > http://v2.sdr-radio.com
> >
> >
> >
> > *From:* Chris Kuethe [mailto:chris.kuethe at gmail.com]
> > *Sent:* 19 August 2014 07:14
> > *To:* Simon Brown
> > *Cc:* hackrf-dev at greatscottgadgets.com
> > *Subject:* Re: [Hackrf-dev] 10MHz clock
> >
> >
> >
> > I was just going to say "Trimble Thunderbolt?" I guess it's not less
> > portable than a laptop and power brick, but that ovenized oscillator is
> > going to be tough to power from USB.
> >
> >
> >
> > On Mon, Aug 18, 2014 at 10:54 PM, Simon Brown <simon at sdr-radio.com> wrote:
> >
> > Hi,
> >
> >
> >
> > Please suggest a 10MHz solution for the clock in, this question has been
> > asked in my Yahoo! group and I have no idea. Is this documented anywhere?
> > Would be interesting to have a portable solution rather than carrying a big
> > Rubidium standard around J . Would my Trimble Thunderbolt work?
> >
> >
> >
> > Toodles…
> >
> >
> >
> > Simon Brown G4ELI
> > http://v2.sdr-radio.com
> >
> >
> >
> >
> > _______________________________________________
> > HackRF-dev mailing list
> > HackRF-dev at greatscottgadgets.com
> > http://nine.pairlist.net/mailman/listinfo/hackrf-dev
> >
> >
> >
> >
> >
> > --
> > GDB has a 'break' feature; why doesn't it have 'fix' too?
> >
> > _______________________________________________
> > HackRF-dev mailing list
> > HackRF-dev at greatscottgadgets.com
> > http://nine.pairlist.net/mailman/listinfo/hackrf-dev
> >
> >

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