Hi folks,
Consider a simple circuit. IR diode, a transistor or two, some resistors
and caps. Receives input from IR remote, converts to electrical and
sends down a wire. No clock in the thing so you could call is passive.
But does it need EMC testing for US or EU? The IR signal will be in the
35-50 kHz range so pulses down the wire will be the same. Does this make
it fit within the realm of EMC required? The device is sold by itself
without other products, but is always connected to something else in
use. Something else could be a wide variety of anything. I think of it
like a stand-alone audio speaker. Purely a passive device that is driven
by signals that fall within the EMC required realm. So do you do EMC or not?
Looking forward to your opinions on this.
Scott
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