[time-nuts] V standards

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Dec 2 08:25:00 UTC 2008


In message <bef.38541c00.36663b55 at aol.com>, SAIDJACK at aol.com writes:

>Coarsedac changes are an issue as you mentioned, but one can get around  them 
>by scaling the two dacs in a way to only use a couple of bits from the  
>coarsedac, and operate most of the time using just the fine dac.

If you are controlling this with a microcontroller, there is an alternative
you should consider:

Use only a single DAC and then PWM modulate its output, followed
by a low-pass filter.

-- 
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.




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