[time-nuts] Interesting 1-60 MHz =/- 50 ppb Stratum-3 TCXO chip

[wdwang at zju.edu.cn]

Maybe good performance in jitter and air flow. But more power(SIT535x 45mA) than TCXO(TG5032 5mA).

Weidong Wang

> 主题: Re: [time-nuts] Interesting 1-60 MHz =/- 50 ppb Stratum-3 TCXO chip
> 
> Looking at the datasheet it doesn't look like you'd win any ADEV
> competitions with it but it's small and the DCTXCO version would be nice to
> use the I2C interface and it says frequency control resolution as low as 5
> ppt.  It has uses I can see.
> 
> Bill
> 
> On Fri, May 1, 2020, 5:50 PM Richard Solomon <dickw1ksz at gmail.com> wrote:
> 
> > Been there, did a search on the part number and came up empty.
> >
> > They did have a "Request Samples" button so I filled out the form. Let's
> > see what happens.
> >
> > 73, Dick, W1KSZ
> >
> > On Fri, May 1, 2020, 5:40 PM jimlux <jimlux at earthlink.net> wrote:
> >
> > > On 5/1/20 5:00 PM, Richard Solomon wrote:
> > > > Where do you buy these ? Their web site was not too illuminating.
> > > >
> > >
> > >
> > > digikey and mouser carry a lot of SiTime parts, including eval boards.
> > >
> > >
> > > > Tnx, Dick, W1KSZ
> > > >
> > > > On Fri, May 1, 2020, 4:31 PM mpb45 at clanbaker.org <mpb45 at clanbaker.org>
> > > > wrote:
> > > >
> > > >> Hello, time Nutters--
> > > >>
> > > >> I have been phase locking the freq counters in my HP 6-GHz VNA,
> > > Tektronix
> > > >> spectrum analyzer and bench freq counter to the 10 MHz signal from
> > > >> a Trimble Thunderbolt via a 4-port distribution box and long coax
> > cables
> > > >> to each of the instruments.  This works well but is a pain in the tush
> > > >> connecting to long coax cables when the bench test gear are moved
> > > around.
> > > >>
> > > >> A friend suggested looking into some MEMS TCXO's made by SiTime to
> > > >> do this with.   SiTime offers a wide variety of Stratum-3 TCXO chips.
> > > One
> > > >> of them is the SiT5358 which is spec'd at 0.05 ppm from 1 to 60 MHz.
> > > >>
> > > >> https://www.sitime.com/products/super-tcxos/sit5358
> > > >>
> > > >> I am wondering what any feedback thoughts might be on this from
> > > >> the Time-Nuts gang?  An eval-PCB board for the SiT5358 chip is
> > > >> available.  What say the Time-Nutters gang about this approach for
> > > >> incorporating a small SiT5358 eval-PCB board into my bench test
> > > >> gear for phase locking to?  I am also wondering which of the
> > > >> SuperStratum3 TCXO chips might be the best choice for a project
> > > >> like this?
> > > >>
> > > >> Any feedback on this is most welcome!
> > > >>
> > > >> Mike Baker
> > > >> Gainesville/Micanopy, Florida
> > > >> *****************
> > > >>
> > > >>
> > > >>
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