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Old August 15th 03, 05:27 PM
Leon Heller
 
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"Harry (SM0VPO)" wrote in message
...
Hi all,
I am having a spot of bother with prescaler chips. Basically I need to

find
one at the right price and availability. US$5 each is reasonable, but

where
from? Is there one available that is not obsolete?

I live in Sweden and my local component shop is ELFA (Swedens answer to

RS).
They don't sell ANY digital divider that operates above 50MHz, except for
the 74F163 and I cannot come up with a reliable interface circuit to

couple
an oscillator into it at over 100MHz.


I'd be inclined to use a CPLD. The Xilinx XC9536 would be good to over 150
MHz and a suitable synchronous counter is quite trivial.

73, Leon
--
Leon Heller, G1HSM

http://www.geocities.com/leon_heller