2 Nov
2006
2 Nov
'06
1:54 p.m.
On Thursday 02 November 2006 16:49, Chris M wrote:
Sure it does. Read what you replied to above again...
Or, go to http://google.com type in "RS-170" and hit search...
Pat
--
Purdue University Research Computing --- http://www.rcac.purdue.edu/
The Computer Refuge --- http://computer-refuge.org
--- Patrick Finnegan <pat at
computer-refuge.org> wrote:
<snip>
Peak-to-peak means the difference between the
maximum and minimum
voltage of the signal. Something that ranges from
+ 5V to +10V
above "ground" would be "5V" P2P, but a 10V peak
signal.
In the case of RS-170 video, it's -0.4V - 1.0V, so
1.4V p-p or 1.0V
peak.
Well that's encouraging. I was thinking in terms of
sine waves and such, which have a peak to peak
voltage, and in that case, half of the cycle is below
ground. I was under the impression that measuring such
a signals "peak" voltage was an rms value, but I guess
I botched that up too :)
RS-170 is US baseband video without color. RS-170A
is US baseband video
with color (NTSC). (525-line, 3.579545 MHz
colorburst frequency, 59.94
fields per second, 29.97 frames per second).
So RS-170 has nothing to do with the amplitude of the
signals? Or should I ask to specify something as
RS-170 compatible/compliant.