[time-nuts] 74HC4046 receiver
bruce.griffiths at xtra.co.nz
Thu Apr 9 00:32:10 UTC 2009
> A long thread was running on various ways to process a 10MHz
> (or other) sinewave to reduce measured jitter (presumably limited
> by slew rate). This note is a quick look at what the 74HC4046
> signal input circuit yields; since it was mentioned in 1 post as
> possibly useful.
> Jitter was measured on a DTS-2075 with a 0.18uf blocking cap
> and a 10:1 resistive divider probe. This provided +/- 250mV into
> the DTS & an AC coupled, 500 ohm load on the 4046 output.
> The sinewave source was the 10MHz ref-out from a PM6681, it's
> the quietest +9dBm signal available to me.
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You have provided no jitter measurment data???
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