[hpsdr] High Performance DDS Oscillator source?

[Graham Haddock]

Dan:

I have some data on the ECS-3953M-125MHz, which is a $4 clock chip  that 
you can
order from Mouser, that shows -140dBc at 1 kHz, which I thought was amazing
for the price.

I use it to directly drive a AD9951 at 125 MHz with no PLLs or 
multipliers for
maximum phase noise performance.

I'll email the spec sheets and data directly to you, since I don't think 
the email
reflector forwards attachments.

--- Graham


Lyle Johnson wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
>   
>> Does anyone have a recommendation for a very low phase noise oscillator
>> for this chip and a place that I can get it from?
>>     
>
> Valpey-Fisher seems to be the main source, at least for N2PK VNA and 
> SDR-1000.  Tough ordering requirements, though.
>
> Mouser carries some claimed-low-phase-noise VCXO, made by Crystek.  See 
> for example the 549-CVHD950-125.00 that we're using in Penelope.
>
> Otherwise, the N2PK VNA and the Pic A Star project use home-brew butler 
> oscillators.
>
> 73,
>
> Lyle KK7P
>
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