M
Michael
- Jan 1, 1970
- 0
I am looking (just started, haven't done much "homework" yet) for the
most robust way to transmit logic signals (three of them).
The distance is short - 6-8 inches. The environment is very noisy -
spark discharge with dV/dt in the order of kV/ns is present.
I have not seen many differential transceivers datasheets yet... How
high in frequency does CMRR go?
I'd rather stay with ribbon cable, as I do not have much room neither
for cable nor for connectors.... Unless somebody makes ultraminiature
connectors and cables. The signals are slow, it is the transitions I
care about, 10-20ns is fine....
Any suggestions?
P.S.:
Does anybody have any experience with AD ADuM12xx isolators? The
datasheet looks fantastic.
BUT....
I did some prototyping and noticed that the chip is useless (for me)
because it picks up the noise.
I corresponded with AD, no joy... I do not exclude the possibility of
"operator error", but think it is unlikely.
most robust way to transmit logic signals (three of them).
The distance is short - 6-8 inches. The environment is very noisy -
spark discharge with dV/dt in the order of kV/ns is present.
I have not seen many differential transceivers datasheets yet... How
high in frequency does CMRR go?
I'd rather stay with ribbon cable, as I do not have much room neither
for cable nor for connectors.... Unless somebody makes ultraminiature
connectors and cables. The signals are slow, it is the transitions I
care about, 10-20ns is fine....
Any suggestions?
P.S.:
Does anybody have any experience with AD ADuM12xx isolators? The
datasheet looks fantastic.
BUT....
I did some prototyping and noticed that the chip is useless (for me)
because it picks up the noise.
I corresponded with AD, no joy... I do not exclude the possibility of
"operator error", but think it is unlikely.
