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ISO1050 CAN ISOLATOR

maruthirao hamsa
Prodigy 60 points

Other Parts Discussed in Thread: ISO1050


Hi,

Selected ISO1050dUB part for CAN Level conversion purpose.

And given connections as per application note(Fig 25).

Without iso1050dub , it can able to transmit & receive data with can analyzer tool(with TTL logic levels).

But if connected with ISO1050 then its not able to transmit data to can analyzer.

At tx pin its not getting sharp raising level and observed some slope (50us slop at tx pin).

Please tell me the solution. At rx pin its been observed sharp raising and sharp falling.

 VCC1=5v

VCC2=5v

Across CANH & CANL 120,120ohm connected parallel at ends.

Regards,

Maruthi

  • 0
    Guru 27665 points

    I don't know if it's the result of the recent lamented changes to the forum but your image is not viewable here.

    maruthirao hamsa said:
    Without iso1050dub , it can able to transmit & receive data with can analyzer tool(with TTL logic levels).

    Umm, what does that mean?

    Robert

  • 0 in reply to Robert Adsett
    Guru 27285 points

    Robert Adsett said:

    I don't know if it's the result of the recent lamented changes to the forum but your image is not viewable here.

     Hi Robert, new forum changed a lot visibility and I am no more able to find where was motor driver I was following...

     In this case I fear no waveform images was posted nor required details.. As can be of usual requester ..

     To our original poster again and again:

     - What are you using driving ISO1050 (processor, Fpga, sparse logic... )

     - Name and location of application note mentioned (page 25)

     - schematic of connection.

     - picture of waveform.

     What means both phrases "can use" and "cannot use" referred to mentioned <<CAN BUS Analyser>> (model and maker) and also from what came slow tx signals?

     Robert Hi stop here, I imagine what can be the trouble and from where it came from ;)

  • 0 in reply to Roberto Romano
    Guru 27665 points

    Roberto Romano said:
    I imagine what can be the trouble and from where it came from ;)

    Yeah, I've some thoughts as well Roberto.  I think I'll refrain from throwing random darts into the dark in an attempt to hit the target though. ;)

     

    Robert