Part Number: ISO1044
How to calculate the desired/max rise time and fall time, if we place 120 ohm CAN cable between two Transceivers?
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Part Number: ISO1044
How to calculate the desired/max rise time and fall time, if we place 120 ohm CAN cable between two Transceivers?
Hi Satish,
Thanks for posting to the Isolation forum!
There is not a specification for rise and fall times in the CAN standard, only bit-width and propagation delay. 120Ω cable is standard for CAN systems, so if the bus is properly terminated with a short cable length, the maximum datarate of ISO1044 (up to 5Mbps) can be achieved with two transceivers.
Please read Top Design Questions About Isolated CAN Bus Design (SLLA486A) and Controller Area Network Physical Layer Requirements (SLLA270) for additional context and helpful information on CAN bus configurations and requirements.
Let us know if you have any additional questions.
Respectfully,
Manuel Chavez