ADC limitations for bandpass/IF sampling

Peter K. wrote:

> Al Clark <dsp@danvillesignal.com> writes:
> 
> 
>>I still call powering up a circuit the first time, the smoke test.
>>
>>Its been a long time since one actually smoked (they don't always work, 
>>but they tend to be a lot more benign).
> 
> 
> When I was tutoring 1st year engineering labs, by far the biggest
> mistake students had made when they said "it doesn't work" was to
> leave the power supply off.
> 
> I _know_ it's bad, but I used to shout <BANG> when they turned the
> power supply on. :-)
> 
> And nine times out of ten, everything worked.  There were just two
> times I remember anything "letting the smoke out".  Once it was an
> electrolytic capacitor that went <BANG> and the other time the
> students got some diodes to glow faintly red... and they we'ren't
> SUPPOSED to be LEDs.
> 
> Ciao,
> 
> Peter K.

I had a coworker for a while who could make a perfect 120-cycle buzz, 
loudly, just like a piece of power electronics about to go up in smoke.

I think if we hadn't been doing stuff that was all DC we would have 
dragged him out and shot him...

-- 

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Hello Tim,

> I had a coworker for a while who could make a perfect 120-cycle buzz, 
> loudly, just like a piece of power electronics about to go up in smoke.
> 
> I think if we hadn't been doing stuff that was all DC we would have 
> dragged him out and shot him...
> 

This was from the days when smoking was still allowed in labs: Engineer 
drinks coffee. Nature calls. While engineer is at the ceramics 
department someone shoves a screw cap with a not-quite-extinguished butt 
under the prototype. Engineer comes back. Smoke billowing out of 
prototype. Engineer panics and rips all supplies off.

Regards, Joerg

http://www.analogconsultants.com