My tea hasn't kicked in yet this morning.
I'm trying to think of a circuit that has the following behavior, and I can't think how to do it with less than three chips.
Digital in and out:
The summary behavior is "follow the input as fast as possible, but don't switch any faster than 200kHz".
- At rest, the output matches the input.
- From rest, if the input changes the output immediately changes to match
- For some interval set by the circuit, the output stays constant, no matter what the input does.
- For the immediate case, the interval is ~250us
- Once the interval is over, the output latches on the input; if it is different (again) then the blanking interval starts over again
- Some (no more than -20, +100%) variation in the interval from rest vs. back-to-back blanking is probably acceptable.
Any thoughts? Trying to work through it just makes my brain cramp. (Actually, it makes me think fondly of 6-pin PIC parts).