Hi There are I2C versions that can be set to “any frequency”. That’s what people are using for synthesizers in radios. Again - one can debate just how good an idea this all is.
Bob > On Dec 11, 2018, at 1:23 PM, Richard (Rick) Karlquist <rich...@karlquist.com> > wrote: > > > > On 12/11/2018 9:13 AM, djl wrote: >> Rick: I've spent some time with the dds blocks. We found them to generate >> lots of low level spurs, making lots of "birdies" when used as local >> oscillators in receivers. >> We had better results using: >> https://www.silabs.com/products/timing/oscillators. > > I was talking about making a programmable frequency synthesizer > with a DDS, to use as a general purpose signal generator. > > A silabs part functions exactly the same as a crystal oscillator > once it receives its one-time programming at the factory, AFAIK. > > Of course a crystal oscillator has better spectral purity than > a frequency synthesizer. But it doesn't make a signal generator. > > Am I missing something? > > BTW, you can do even better than Silabs with an actual crystal > oscillator such as those made by Crystek. > > Rick > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
