AliExpress has them, 5 piece lot for $70 shipping to US $4.21. One claim I saw said in quad mode 22 ps resolution. Hmmmm Don
paul swed > Angus > Yes I did a fast check and couldn't find anyone in the US that seemed to > carry it. The eval kit looks nice but will speculate its quite costly. > That said I could see some uses for it like you say it has some things > built in to eliminate false triggers and such. Just need to know if $1.59 > or $159 each. > Cheap chips I may play with. > Regards > Paul. > > > On Sat, Apr 5, 2014 at 8:03 PM, Angus <[email protected]> wrote: > >> Hi, >> >> It's not exactly cutting edge resolution etc, but for a ready to go >> chip, it's not at all bad. In theory, it looks like it should be >> useful in a lot of the places that counters like a 53131/2 get used, >> but it can sample very much faster than them. It also has useful >> temperature inputs. >> >> Most of the projects I've come across don't stretch its performance so >> I'm just interested if someone has really tested it. >> If not, I expect I'll find out more when I get it up and running. >> >> Angus. >> >> >> On Fri, 4 Apr 2014 18:27:05 -0400, you wrote: >> >> >Angus >> >An interesting chip. I had never heard of it before and suspect this may >> be >> >the gizmo used in closed system water leak detection. Won't go into why I >> >know about that. >> >I did find comments from 2007 about the chip and atmega but nothing since. >> >When I went looking for distributors or pricing to get an idea came up >> >empty. Though Amazon will sell you lots of vitamins or something called >> TDC. >> > >> >So with all that said I will guess that for time-nuts purposes the >> >capabilities of this chip have been far exceeded by the various array >> >technologies we have at very cheap prices today. The ability to create >> long >> >counters at very high speeds. >> >Only a guess though. >> >Regards >> >Paul. >> >WB8TSL >> > >> > >> >On Fri, Apr 4, 2014 at 5:35 PM, Angus <[email protected]> wrote: >> > >> >> Hi, >> >> >> >> With all the recent talk of interpolators, I started looking at the >> >> acam TDC chips again - the GP22 is pretty cheap now for anyone who's >> >> up for playing with the tiny QFN package. >> >> >> >> I was wondering if anyone here has tried them or properly evaluated >> >> them as a TIC - especially the GP2/GP21/GP22. >> >> >> >> A few years back a some folk were talking about it, but I did not hear >> >> much since that. >> >> >> >> Angus. >> >> _______________________________________________ >> >> time-nuts mailing list -- [email protected] >> >> To unsubscribe, go to >> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> >> and follow the instructions there. >> >> >> >_______________________________________________ >> >time-nuts mailing list -- [email protected] >> >To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> >and follow the instructions there. >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > -- "The power of accurate observation is commonly called cynicism by those who have not got it." -George Bernard Shaw Dr. Don Latham AJ7LL Six Mile Systems LLC 17850 Six Mile Road Huson, MT, 59846 mail: POBox 404 Frenchtown MT 59834-0404 VOX 406-626-4304 Skype: buffler2 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
