[time-nuts] Programmable clock for BFO use....noise
Didier Juges
shalimr9 at gmail.com
Sun Sep 16 12:49:20 UTC 2018
Not the same part number but probably similar in terms of performance:
http://www.ko4bb.com/getsimple/index.php?id=microprocessor-crystal-oscillator-comparison
Bottom line: use a true crystal oscillator, or make your own PLL, not a
programmable "microprocessor crystal"
On Fri, Sep 14, 2018, 11:15 AM <lstoskopf at cox.net> wrote:
> Off topic for this list, but you guys are experts in oscillator noise!
>
> Playing with some mechanical filters. Need USB and LSB crystals for the
> BFO. No one seems to make crystals anymore, especially in the 253 KHz
> range!
>
> Looking at the DigiKey Cardinal programmable oscillators. Cheap and
> available: CPPC1LZ A5B6
>
> Anyone have an idea how noisy these would be after a division by 4 to get
> them in range?
>
> Thanks,
>
> N0UU
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