[time-nuts] Prescaler
Herbert Poetzl
herbert at 13thfloor.at
Mon Mar 28 11:15:53 UTC 2016
On Sun, Mar 27, 2016 at 07:45:23PM +0000, Bob Albert via time-nuts wrote:
> Does anyone know of an inexpensive prescaler for a counter
> that goes beyond 2 GHz?
A few years ago, I was looking for something cheap to build
a PIC based GHz counter and I stumbled over the LMX23xx
chips from TI (PLL frequency synthesizers), which have
a prescaler built in.
Specifically the LMX2322 and LMX2364, which are quite cheap
and easy to use (older ones available on eBay, the newer
ones at your favorite distributor).
http://www.ti.com/lit/ds/symlink/lmx2364.pdf
> I would actually like to find a kit but everything seems
> a bit pricy.
I have designed breakout boards for both, so if that looks
like something which could be useful to you, just drop me
a note and I'll make them available.
Best,
Herbert
> 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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