Hi Team,
Posting this question for my customer, kindly let me know feedback on use case below:
We are planning on using the TS5USBC402 for testing our T1 diff pairs. We were thinking we can handle all of our test cases with just one chip:
- For both P and N open circuit, disable output using OE pin.
- For P and N short, short D2 pair with a resistor and then select D2 output for both P and N.
- For individual P and N open circuit, switch only one at a time to D2 output.
D1 carries the pair through to its normal destination.
However, this note in the datasheet caught my eye:
However, TI recommends that unused pins must be connected to ground through a 50-Ω resistor to prevent signal reflections back into the device.
Would it be possible to get some information on the rationale for this? Are there any cases that cause damage to the TS5USBC402 chip, and does this only apply to the diff-pair pins?”
