>From: "Martyn Smith" <martyn at ptsyst.com>
>Subject: [time-nuts] Phase Noise of 74AC gates
>
>I'm not about to say how we achieve -170 dBc/Hz phase noise, but we
>definitely don't use op amps or logic gates!!
>
>Regards
>
>Martyn
Is this an advertisement? I don't think anybody believes a logic gate provides state-of-the-art reference buffering.