Rigol caught with their pants down! (DS1052E Oscilloscope)

[...]

Yes, I am sure it was the mfg. Profit maximization :-)

--
Regards, Joerg

http://www.analogconsultants.com/

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had to check, virtex5 has a programmable IOdelay, 64 taps of each ~78ps with the nominal 200MHz reference

-Lasse

That is their right of course. Selecting parts for a higher priced close tolerance sales line is hardly anything new. As long as some people are prepared to pay for the extra cost of testing, and as long as all items meet their respective specification claims, then surely there is no problem. If some people are then unable to get higher spec at the cheaper price, that is just their bad luck surely?

MrT.

Is it fully programmable? I surely don't remember that, though I didn't use a Virtex-5.

Well, there was a standard distribution built into the Advanced Analysis (PSpice or Analog Workbench) simulator that was a gaussian with a notch in it. It became a standard practice for a while from some manufacturers... ;-)

Charlie

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when used as output delay it is programmable at compile time, when used for input it is programmable at compile time but can be changed at runtime.

haven't used it either think it is new for virtex5 and later

-Lasse

Wow, I didn't know this practice went quite that far.

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Regards, Joerg

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Yep, and I told them this was going to happen one fine day. So they had to find another brand with non-notched Gaussian.

--
Regards, Joerg

http://www.analogconsultants.com/

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Yes, when you think about it, with automated testers, you can do a

100% value sort, so you actually had to deal with 10% tolerance, with a hole from +/- 5%, then 5% with a hole from +/- 1%, etc.!

Charlie

I know of one company, who made precision capacitors, made whatever and then binned them by value. ;-)

the 1%=20

One=20

smack=20

had=20

stockroom and=20

someone=20

lengths=20

front=20

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that

On the other hand, there is also the yield distribution of the manufacturing process; which may be 5 %, 2 % or 1 % or tighter.

Ya know, as long as you're binning, it opens up interesting possibilities. Like, you can not buy a resistor that's midway between E96 values, exactly where your divider happens to need it. So you can bin the tight inner 1%, and the resistors that are marked up exactly 1-2%, and etc. :-)

Tim

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