Part Number: ISO3082
Hello，TI engineer，When I did the IEC61000-4-6 test on the 485 interface (10V 150K~80Mhz), there was interference on the 485 signal line. The communication method adopts self-loopback. For example, RS485-1 channel and RS485-2 channel loopback communication.
During the test, it is judged whether the communication is normal by watching the signal light on or off. If the communication is interrupted, the signal light will be on; if the communication is normal, the signal light will not light. However, the observed waveform at the 485 AB end is now disturbed, as shown in the following figure.
the rx tx signal which connect to FPGA is not Not affected。Does this situation indicate that my RS485 can withstand the IEC61000-4-6 test?OR NOT?Where do I need to improve?
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.