Hi Vasile, You might take a look at RfCandy, http://www.rfcandy.biz/shop/
13 MHz 2.5 ppm VTCXO = 2.5 Euro 16.8 MHz 2.5 ppm VTCXO = 3 Euro Also reasonable shipping & handling costs Albert On Mar 11, 7:43 am, vasile surducan <[email protected]> wrote: > Yes, I've worked even with 2.5ppm VTCXO.(output frequency may be slighty > modified using a voltage) > However some of them are so expensive ($75 up to $150) that are prohibitive. > I've seen 3.3V TCXO with 5ppm at $2.5 or so, I think at Digikey. > > On Thu, Mar 11, 2010 at 1:15 AM, mattschinkel <[email protected]>wrote: > > > > > Actually, I was able to find the datasheet for the one I have: > > >http://www.brookdale.com/Fox/f1100e.pdf > > > Frequency Stability / Part Number > > ±100PPM / F1100E > > ±50PPM / F1145E > > ±25PPM / F1144E > > > Matt. > > > On Mar 10, 2:57 pm, mattschinkel <[email protected]> wrote: > > > Has anyone tried crystal based oscillators like this one for an RTC? I > > > have one, but did not try it on RTC. You just add GND + 5v and get an > > > output. > > > >http://cgi.ebay.com/1K-NDK-1264-14-31818MHZ-FULL-SIZE-CRYSTAL-OSCILLA... > > > > Maybe search the net for a datasheet and see if you can find something > > > about accuracy. > > > > Matt. > > > > On Mar 10, 4:30 pm, "m...@watty" <[email protected]> wrote: > > > > > On Mar 10, 5:45 pm, vasile surducan <[email protected]> wrote: > > > > > > This is not necessary since there is available a calibration > > register. > > > > > That's nice. > > > > > You'll want either NPO capacitors, or possibly quality Pxxx or Nxxx > > > > depending on temperature coefficient of crystal. > > > > > I wonder how you decide what to put in calibration register?- Hide > > quoted text - > > > > - Show quoted text - > > > -- > > You received this message because you are subscribed to the Google Groups > > "jallib" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<jallib%[email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/jallib?hl=en. -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
