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#7
November 18th 03, 08:14 PM
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On Tue, 18 Nov 2003 01:27:56 GMT, (J M Noeding) wrote: for my quite unstable counters I've got some 0.1ppm 9.6MHz VCXO's (guaranteed over temperature range -20...+20°C), the problem is that the original XO is 1MHz with 7490 divider, and now I need a divide by 96 downcounter. The VCXO drives a 74LS14, so it shouldn't be any fan out problem, but I am not aware what is the readily available divider to choose. I really should have remembered the 74HC40103 presetable divider - I designed one into a circuit just a few years ago..... There is a fairly similar 40102. My suggestion of the 74HC4059 was overkill by a hard-to-get part. |
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