Recently, i have been having all kinds of funny things; like many posts not available any more but replies to it visible. No apparent reason. = The retry nature of Usenet makes this very strange. Normally if you can get enough header to find the message you can get the message. Very strange. Very random message drops. And i pay for it.
connected
Why? I get paid when I send them the schematic, BOM, and simulations. Debug is extra, and anyway it isn't going to be that hard, I don't think--I built a test board that worked fine with only one minor bodge. It really does pick up everything around, unless I run it inside a metal box with feedthrough capacitors.
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
and Tim
comparator
triangular wave
MC100EP116.
allow. You
ramps, but
stable high
pulses at
pretty
scope and
compensation
procedures. Same
exactly
happen.
unusual
noise
trick,
5-1/2(Easy in a
works as
under 1 pF
packaged
to add
accurate
coupling
anyway.) The
beat
drive of a
could be an
attenuation,
Square waves
feedback. C2 and R2 represent your pad capacitance and input resistance. Then by choosing a feedback R1 C1 with identical time constant, the square wave voltages across R2 and R1 will be equal. It's a way of putting the test waveform on your circuit input without tapping it with anything less than ultra-high Z at your frequencies of interest.
which is just an approximation anyway, when you can put the end result you want there directly, a rectangular waveform.
(The
Otherwise
are you saying 0.3p? You're not going to get much of a step across that with the differentiated triangle. And you keep talking about TCs. How harsh is the typical PCR lab anyway? I would think 15o-30o covers it in the extreme.
0.05to
but
Beer doesn't cause jitter. Coffee causes jitter.
-- John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation
and Tim
comparator
triangular wave
MC100EP116.
allow. You
ramps, but
stable high
pulses at
pretty
scope and
compensation
procedures. Same
exactly
happen.
unusual
noise
trick,
5-1/2(Easy in a
works as
under 1 pF
packaged
to add
accurate
coupling
anyway.) The
beat
drive of a
could be an
attenuation,
Square waves
feedback. C2 and R2 represent your pad capacitance and input resistance. Then by choosing a feedback R1 C1 with identical time constant, the square wave voltages across R2 and R1 will be equal. It's a way of putting the test waveform on your circuit input without tapping it with anything less than ultra-high Z at your frequencies of interest.
which is just an approximation anyway, when you can put the end result you want there directly, a rectangular waveform.
for
(The
TCs
Otherwise
are you saying 0.3p? You're not going to get much of a step across that with the differentiated triangle. And you keep talking about TCs. How harsh is the typical PCR lab anyway? I would think 15o-30o covers it in the extreme.
0.05expect to
board
but
After the 10th pint it can :-)
Depends on the quantity. Once past the point where the jitter stops and someone has to call an ambulance it may be too late.
-- Regards, Joerg http://www.analogconsultants.com/
and Tim
comparator
triangular wave
MC100EP116.
allow. You
ramps, but
stable high
pulses at
pretty
scope and
compensation
procedures. Same
exactly
happen.
unusual
noise
trick,
5-1/2(Easy in a
works as
under 1 pF
packaged
to add
accurate
coupling
anyway.) The
beat
drive of a
could be an
attenuation,
Square waves
feedback. C2 and R2 represent your pad capacitance and input resistance. Then by choosing a feedback R1 C1 with identical time constant, the square wave voltages across R2 and R1 will be equal. It's a way of putting the test waveform on your circuit input without tapping it with anything less than ultra-high Z at your frequencies of interest.
which is just an approximation anyway, when you can put the end result you want there directly, a rectangular waveform.
for
(The
TCs
Otherwise
are you saying 0.3p? You're not going to get much of a step across that with the differentiated triangle. And you keep talking about TCs. How harsh is the typical PCR lab anyway? I would think 15o-30o covers it in the extreme.
0.05expect to
board
but
It does when you stop. ;-)
Sure. Nothing moves without it.
What I noticed: Until recently I had to block everything coming in via a google domain because their spam level was out of control. Occasionally I took out the filter and put it right back in. Then one day I noticed that the spam getting being caught and dumped by my own filter had become miniscule. It seems the server I am using is now hosing off a lot of that stuff right there, doesn't even get on. Obviously that can result in the occasional good post being hosed off. That's why I keep telling people not to use freemail domains. Because their posts may simply not show up on many news servers.
[...]-- Regards, Joerg http://www.analogconsultants.com/
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