Frequency divider ICs for RF

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Hi.
A divider integrated circuit for RF (say ÷10) works outputting a 'stretched' single sinewave of 10 cycles duration period; or will output one equally 'short' as-input-cycle every 10 inputted ?
Prescalers ICs are analog for sinewave RF or work square wave in and out ?

Is there a fixed ÷1000 prescaler IC in the market ; fin max = 200MHz?
 

CMOS prescalers I have seen, work -better- with square waves
(in terms of things like phase noise) but are made to work well
enough with sine wave input.

I think 200MHz is kinda low to interest the "RF" semiconductor
folks and I haven't seen single chip prescalers with /N greater
8. This is somewhat due to difficulties running complex counters
at >GHz in pennies-per-part technologies.

You might look at PLLs with pin-strap /N, and see if that
counter's output is pinned out in any way.
 

Output of a Prescaler is square wave due to its nature..
There were prescalers in the market form Siemens, Plessey,Motorola,Telefunken 20+ years ago but it's possible to find them again in ebay or similar second hand markets.
They have been working up to 3 GHz and division ratios were 16,32,34,128 etc.If you find one them, you can use HiSpeed CMOS prescalers beyond the first one.
On Semiconductor manufactures still such prescalers.
https://www.onsemi.com/products/clock-timing/clock-data-distribution/arithmetic-functions
 
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