[time-nuts] Modern signal generators

[jimlux]

On 12/11/18 10:23 AM, Richard (Rick) Karlquist 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.
> 

Most of the Silabs parts are available in an  I2C programmable version 
rather than the factory programmed flavor.