Re: sine/cosine encoder interface schematic wanted

>If anybody is familiar with these products..
>I bought a bunch of RSF linear encoders type MSA654 two weeks ago and
>haven't found much electrical data on them yet.
>The alternative is to open one up and figure out what's inside (can't be

too

>complicated, I saw an LM339 living in there) but it would be very nice to
>get hold of the original data.
>Anything useful is welcomed!

Mike,
Hathaway motion control has some articles on sin/cos encoders
no schematics but they do discribe some of the requirements
http://opticalencoder.com/applications.html

RSF Electronics http://www.rsf.net/ dosent list the MSA654 on there site
but if its similar to the other MSA65X encoders it wil have ether a sq-wave
digital
or 1v p-p analog output to feed into a digital counter or 2-channel ADC
the lm339 comparator leads me to suspect that this encoder has digital
output
looks like a nice unit ether way
BFP