[time-nuts] Precision DACs
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