[Jim Monson]

Anybody know where to get something like this?

http://www.hittite.com/products/view.html/view/HMC-C040

I need to take one out of every ten pulses on a speed sensor. I would like to use this on a 16V system but I'm assuming I could use a resistor to step the voltage down. Please let me know if you can help.

 

[y2khawk]

what kind of output on the sensor? Standard 2 wire VR or 3 wire hall?

You can probably whip up something with just some discrete logic chips. Probably the cheapest anyway.

what's the output of the divider need to drive?

 

[Jim Monson]

It is a 2-wire reed switch sensor. It creates a 0-5 V ac output. The amplitude gets larger as rpm goes up. The time between pulses also gets shorter. My problem is that when the time between pulses gets too small the data logger can't keep up. If I record 1 of every 10 the logger should have no problem.