low level serial
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Posts: 46,084
I am in need of a device for converting low level serial to ttl levels.
The incoming serial data is only a few hundred milivolts p-p squarewave.
Does anyone know of a chip designed for this purpose, or am I going to have
to resort to using a comparator?
I figure a 139, 239, 2901, or 3302 would handle the temp extremes this app
calls for (339's tend to malfunction below 32'f, 0'c)
The incoming serial data is only a few hundred milivolts p-p squarewave.
Does anyone know of a chip designed for this purpose, or am I going to have
to resort to using a comparator?
I figure a 139, 239, 2901, or 3302 would handle the temp extremes this app
calls for (339's tend to malfunction below 32'f, 0'c)
Comments
But watch for the input offset voltage.
--- In basicstamps@y..., "FalconWireless Tech Support - KF4HAZ"
<techsupport@f...> wrote:
> I am in need of a device for converting low level serial to ttl
levels.
> The incoming serial data is only a few hundred milivolts p-p
squarewave.
> Does anyone know of a chip designed for this purpose, or am I going
to have
> to resort to using a comparator?
> I figure a 139, 239, 2901, or 3302 would handle the temp extremes
this app
> calls for (339's tend to malfunction below 32'f, 0'c)