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TCAN332EVM: How to Setup of TCAN332EVM with split termination and normal mode operation

Tetsusei Kan
Prodigy 180 points
Part Number: TCAN332EVM
Other Parts Discussed in Thread: TCAN332, SN65HVD1050

Hi,team.

I want to operate TCAN332EVM with split termination and nomal mode.
i have 3 question.

①How should I set JMP 6?

②I think , I can operate split temination mode with only implement 60Ω in R7 and R15, 4.7nF in C4 .
is this right?
2.1.11 in User's Guide say [If the device and application support split termination the JMP6...].
Are there conditions other than R7, R15, C4 to operate with split termination?

③what does mean Table 5. in User's guide ,  Device pin No.5 ?
In datasheet of TCAN 33x, pin No.5 has NC/SHDN/FAULT function.
What is Vref/SPLIT?
If I want to operate split termination mode , should i think about Vref/SPLIT?

  • 0
    TI__Intellectual 2090 points
    Hello,

    #1:
    For JMP 6, this jumper gives flexibility to the EVM in order to support multiple devices that have differing Pin 5 functions. For the TCAN332, Pin 5 is a No Connect (NC), and so JMP6 will have no effect on operation regardless of the jumper position. If there is a digital input at Pin 5, such as Shutdown (SHDN), then you can implement the 4.7 k-ohm pull-up if you want.
    If you implement an SN65HVD1050 device on the EVM, then this device has a reference voltage output on Pin 5 (VREF), and JMP6 should be set to the VREF position.

    It looks like you are just using the TCAN332 device, and so in your case Pin 5 is a No Connect and JMP6 can be left in any position.

    #2:
    Yes, you may implement 60-ohm resistors for R7 and R15, with 4.7nF for C4. As long as JMP4 and JMP5 are disconnected, you will operate with split termination.

    #3:
    As I said previously, the User's Guide and the TCAN33XEVM allows for flexibility with multiple devices with various functions. VREF/SPLIT is only used for devices with that functionality at Pin 5, like the SN65HVD1050 device. In your case, this isn't needed.

    Does that help?

    Best Regards,
    Max Megee
    TI Transceiver Applications
  • 0 in reply to Max Megee
    Prodigy 180 points

    Hi Max,

    All my questions have been resolved.

    Thanks.