[time-nuts] fast switching quiet synthesizer

bruce at ko4bb.com bruce at ko4bb.com
Tue Oct 7 23:18:29 EDT 2014


http://gmcatalog.kratosepd.com/index.cfm?act=prodsforgroup&grp=45
http://ams.aeroflex.com/ASCS/micro-ASCS-prods-synthesizers.cfm
are the relevant webpages
Bruce

> On October 7, 2014 at 11:06 PM "bruce at ko4bb.com" <bruce at ko4bb.com> wrote:
>
>
> Kratos (www.kratosepd.com) do fast switching synthesiser subsystems that can
> be locked to a reference..
> Aeroflex (www.aeroflex.com/ASCS) do 250ns settling time synthesisers.
>
> Bruce
>
> > On October 7, 2014 at 7:52 PM Jim Lux <jimlux at earthlink.net> wrote:
> >
> >
> > On 10/7/14, 1:19 PM, Don Latham wrote:
> > > I have two "versions" of the ADF4351 dds. One is the AD eval board, and
> > > the
> > > other the TPI synthesizer
> > > (http://www.rf-consultant.com/calibrated-signal-generator/) at $280 that
> > > might
> > > do the job. The latter device performs well. It will be as good as the
> > > 4351,
> > > I
> > > think. It has a programmable attenuator. A good price. Requires a Healthy!
> > > USB port.
> > > Don
> > >
> >
> > How fast does it settle? (it's a VCO-PLL, so the loop filter is
> > probably the rate limiting step)
> >
> > How well can you synchronize the changes.
> >
> > USB is no problem.
> >
> >
> >
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