[time-nuts] Gate propagation delay jitter
SAIDJACK at aol.com
SAIDJACK at aol.com
Tue Apr 10 19:42:04 EDT 2007
In a message dated 4/10/2007 14:28:11 Pacific Daylight Time,
bruce.griffiths at xtra.co.nz writes:
Then we would need to know/measure the jitter of the retiming flipflop.
There appears to be little definitive published data on the jitter of
various logic gates and flipflops.
Consequently a simple reliable method of measuring such jitter would be
useful.
Hi Bruce,
if I remember correctly, Philips makes a special low-metastability 74 FF
chip. It has guaranteed metastability-recovery time, and seems to be the only 74
type chip out there with that claim to fame.
They really looked at the timing of that part, maybe there are some jitter
specs available, if not in the datasheet then potentially through your local
NXP rep :)
bye,
Said
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