[time-nuts] Brooks Shera

Attila Kinali attila at kinali.ch
Mon Mar 25 14:12:09 EDT 2013

On Mon, 25 Mar 2013 18:56:34 +0100
Attila Kinali <attila at kinali.ch> wrote:

>  Because of this, the behaviour of the
> counter is undefined and can lead not only to missing one count (which
> would be caught by the PI control loop as additional noise), but the output
> of the D-flip flops in the counter can switch or not switch depending
> on the wheather in Guatemala.

Maybe to clarify here:
The reason why all 4 flip-flops (and thus all 4 output bits) are affected
is because the 74HC4520 passes the input clock to all four flip-flops
(see figure 5 in http://www.nxp.com/documents/data_sheet/74HC_HCT4520_CNV.pdf)

			Attila Kinali
The people on 4chan are like brilliant psychologists
who also happen to be insane and gross.
		-- unknown

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