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Unread 17-01-2005, 15:05
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Re: Are 100k Ohm pots necessary?

Quote:
Originally Posted by Al Skierkiewicz
Mike,
I have the input equivalent circuit around here someplace. I will continue to try and find it so it will help understanding the circuit. In the mean time, the 100K pot is selected to work with the input circuitry on the RC and the OI. The pot is connected to an A to D convertor through some input protection circuitry in each of the devices. Note that the wiring is different for the RC and OI analog inputs. Additionally, joysticks use the 100K pots.
IFI sent me the input circuitry for the RC this morning. They said they would post it, but I haven't seen it show up yet. I've attached it in the meantime.

The input circuitry for the microprocessor is on page 217 of the datasheet.
Attached Files
File Type: pdf analog-digital--i-o-rc.pdf (14.6 KB, 118 views)