Re: [PSES] SEU

2013-07-17 Thread Knighten, Jim L
Derek, I am only expert enough to be dangerous on this subject, but I think that you need parts that have been tested for susceptibility to SEU latchup (such as error correcting RAM, perhaps) and then you need analysis to show that your avionics functions can tolerate SEU upset or latchup.

Re: [PSES] EMC Required?

2013-07-17 Thread Scott Douglas
Grace and Bill, Here is an excerpt from the FCC Rules: 15.3 Definitions (k) Digital device. (Previously defined as a computing device). An unintentional radiator (device or system) that generates and uses timing signals or pulses at a rate in excess of 9,000 pulses (cycles) per second and

Re: [PSES] EMC Required?

2013-07-17 Thread John Shinn
Scott: I think you are correct, but for the wrong reasons. As I understand your product, it apparently is a small IR detector circuit (board?) which will be sold to an OEM for incorporation into their product such as a TV for use in changing channels, etc.. In all probability, the power