there is a very inexpensive one ADF4118 works up to 3GHz
which has a programmable prescaler
http://www.analog.com/media/en/technical-documentation/data-sheets/ADF4116_4117_4118.pdf
more here:
http://www.qsl.net/bg1ceo/Tech_topic/rf/7G_prescaler/prescaler.html
or here: http://www.qsl.net/n9zia/pre/prescaler.pdf
73
KJ6UHN
Alex
On 3/27/2016 1:41 PM, Bob Camp wrote:
Hi
There are a *lot* of chips that will divide down from a couple of GHz. Once you
have a chip, what do you do with it? There is more to a practical counter front
end than just the divider. Getting it all to work requires a bit of time and a
pretty good pc board.
This guy:
http://www.analog.com/en/products/rf-microwave/frequency-dividers-multipliers-detectors/frequency-dividers-prescalers-counters/hmc705.html
Will do a divide by 10 and go higher than your counter will. It’s a bit
expensive … The eval board is cheaper than a single piece and it will give you
a pretty good start.
This guy:
http://www.analog.com/en/products/rf-microwave/frequency-dividers-multipliers-detectors/frequency-dividers-prescalers-counters/hmc434.html
Will only divide by 8, it still goes higher than your counter. The eval board is a
bit over $200. One piece of the Ic is < $12.
Bob
On Mar 27, 2016, at 3:45 PM, Bob Albert via time-nuts <[email protected]>
wrote:
Does anyone know of an inexpensive prescaler for a counter that goes beyond 2
GHz? I would actually like to find a kit but everything seems a bit pricy. I
currently have capability of 500 MHz and that will stretch to about 700 with
care. So a divide by 10 would be ideal.
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