not to mention +/- a few hundred ppm is not a big deal. You can always correct for it in software. ;)
On Tue, Mar 14, 2017 at 8:49 AM, jimlux <[email protected]> wrote: > On 3/14/17 5:04 AM, Bob Camp wrote: > >> Hi >> >> The cost difference between a complete oscillator package and a simple >>> crystal is tiny. The osc is often cheaper if you include board space or >>> engineering time. >>> >> >> Purchased in volume, the difference it the price of a crystal vs a >> complete XO >> is enormous. You will see at least a 10:1 cost savings on the crystal and >> likely >> more than that. Simply attaching a crystal to the internal oscillator >> inside a >> chip is nearly zero engineering cost. If your product is cost sensitive >> and >> not super tight tolerance … you go with the crystal. >> >> > And that crystal business (gazillions of inexpensive 16 MHz crystals) is > very different from making an approximately 12 MHz crystal used in a VCXO > that will be FMed and multiplied up by 36 to make a 430 MHz transmitter, > oh, and that matches whatever temperature compensation scheme GE used in > 1970. > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/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.
