[sdiy] May run class again this Spring

Magnus Danielson cfmd at bredband.net
Fri Apr 13 00:54:04 CEST 2007


From: Oren Leavitt <obl64 at ix.netcom.com>
Subject: Re: [sdiy] May run class again this Spring
Date: Thu, 12 Apr 2007 15:32:29 -0700
Message-ID: <461EB37D.2010600 at ix.netcom.com>

> harrybissell at copper.net wrote:
> > Every now and then the Digital kids come to me
> > for assistance... Analog is NOT dead.  Just think of
> > how the experience of chasing a ground loop in and Audio
> > system can be applied to a data acquisition problem
> > in industry.
> > 
> > At the end of the day EVERYTHING is really analog.
> > Ones and zeros are just a convenient subset :^P
> > 
> > H^) harry
> > 
> > 
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> > 
> 
> "1" is an euphemism for "Somewhere near Vcc and, dammit, I don't know 
> exactly!".
> "0" is an euphemism for "Somewhere near ground and, dammit, I don't know 
> exactly!".
> Everything else in between? Well, better run and fetch someone who 
> speaks BBROYGBVGW (resistor color code)...

When I see "digital" I see things like just how fast or slow '0' becomes '1'
or vice versa. When a single '0' or '1' is about 100 ps this is pretty darn
quick, and you bet your digital ass that it is highly analogue! Capacitance,
inductance, impedance, reflexes, bandwidth, loss, noise injection.....

Oh, and everything is clocked with a "stable" clock source. Ha!

Phase and Frequency is one of the most difficult things to have the digital
guys to understand. Especially when it is not exactly the same, and shifting
around a little etc. The digital guys only see X and X+1 cycles. :(

Cheers,
Magnus



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