On Sun, 04 Oct 2009 23:46:48 -0500, you wrote: >Steve Blackmore wrote: >> >> >> Hi Jon >> >> Encoder is connected to a couple of UA9637ACP differential line >> receivers. I'm putting A+ A-, B+ B-, I+ I- in and getting A, B, I out at >> 3.5V, should I connect the resistors on the outputs of the line >> receiver? >> >> >Oh, my! This is getting messy, for sure. Possibly you do need the >pullups on the >9637 outputs. You can certainly try that. Also, do you have >terminators on the differential >lines coming into the receiver? If not, there will be a lot of ringing >on every state transition. >I usually put a 120 Ohm resistor across the inputs of the line receiver.
Hi Jon - tried 120 Ohm across the inputs - it stopped the line receiver working? The pull ups on the outputs helped marginally but it's much better than it was and is quite usable. I'll order some better encoder cable and will try and rewire. Steve Blackmore -- ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
