[time-nuts] Precision DACs

Poul-Henning Kamp phk at phk.freebsd.dk
Wed Jul 27 01:47:19 EDT 2016

In message <2ea1326f-0690-6884-8fc4-29f45c57fd7b at karlquist.com>, "Richard (Rick
) Karlquist" writes:

>The 5071A has a "home brew" DDS that was designed by the late
>(and great) Robin Giffard.  He used what he called a "blanking"
>circuit that disconnected the DAC during the time period when it
>is at risk for glitching on code transitions.  He described it
>in terms of some new innovation he had invented.  It seemed to
>me an "obvious" (that loaded word) idea that surely must have
>been used before.

For instance on page 66 in HP Journal february 1989 ?

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

More information about the time-nuts mailing list