question to BISS/SSI protocol

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23 Feb 2020 14:32 #158296 by Reinhard
Hi,

the encoder IC has weak drivers, which are not strong enuf to drive signals over long cables.
But it already has differential outputs for ABZ interface.
Is it appropriate to use a 74vhc14 as amplifier as it has 6 drivers in one IC?

For the BISS interface I plan to use a max3491 (one driver and one receiver).

Is that ok to work with mesa cards I have?

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23 Feb 2020 14:36 #158297 by PCW
Replied by PCW on topic question to BISS/SSI protocol
MAX3491/ISL83491 should work for BISS
For quadrature I would use a quad RS-422 driver
(26LS31, ISL32174 etc etc)

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24 Feb 2020 03:44 #158354 by Reinhard
I guess, that means not using differential output from sensor.
Will an AM26C31 be usable too?

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24 Feb 2020 03:57 #158355 by PCW
Replied by PCW on topic question to BISS/SSI protocol
Any RS-422 compatible differential driver should do including the AM26C31

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24 Feb 2020 16:52 #158395 by Reinhard
Well, I thought so, when I worked out my bob for smartserial with a max491 - which did not the job.
Therefore this time I asked before ordering a diy-board.

So thank you for your support!

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