1. System Device 3 meter USB cable USB 3.1 Host TUSB7340 40” <4”
Repeater 1
Repeater 2 ?
Total = 40”-45” FR4
Card connectors
Repeater: SN65LVPE512A or TUSB522P
Questions to TI:
Cable side: One repeater #1 is strong enough to drive 4” FR4 + 3m USB 3 cable + 4” FR4? Should be Okay.
Host side: Both TUSB7340 and Repeater 1 is able to drive 40” FR4 + 2 connectors? Repeater may be okay but Host may not.
If answer to questions 2 is “NO”, a second repeater should be added next to the cable connector and place the repeater 1 closer to TUSB7340, but when there are two repeaters added in cascade it is leading to another concern or question, Is it electrically okay to have 2 repeaters in a series?
If TI has a better idea or solution, please share with us. Thanks,