[time-nuts] fast switching quiet synthesizer

Jim Lux jimlux at earthlink.net
Tue Oct 7 19:52:34 EDT 2014

On 10/7/14, 1:19 PM, Don Latham wrote:
> I have two "versions" of the ADF4351 dds. One is the AD eval board, and the
> other the TPI synthesizer
> (http://www.rf-consultant.com/calibrated-signal-generator/) at $280 that might
> do the job. The latter device performs well. It will be as good as the 4351, I
> think. It has a programmable attenuator. A good price.  Requires a Healthy!
> USB port.
> Don

How fast does it settle?  (it's a VCO-PLL, so the loop filter is 
probably the rate limiting step)

How well can you synchronize the changes.

USB is no problem.

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