DS125BR820: Will boundary scan test signals pass through?

Carl Audet

Part Number: DS125BR820
Other Parts Discussed in Thread: DS125BR800A

Tool/software:

Hello, I want to use the DS125BR820 for 5G PCIe but I would also like to test each differential bus with 1149.6 JTAG boundary scan. Will the DS125BR820 redrive the boundary scan test signals?

Thank you

3 months ago

0 Drew Miller1 3 months ago

TI__Mastermind 38633 points

Hi Carl,

I'm not too familiar with 1149.6 JTAG signaling. Is this LVCMOS signaling? Would the signal you would pass through the redriver be a single-ended or differential signal?

Thanks,

Drew

0 Carl Audet 3 months ago in reply to Drew Miller1

Prodigy 10 points

Hi Drew, the signal would be 1.2V differential, <10MHz.

0 Carl Audet 3 months ago in reply to Carl Audet

Prodigy 10 points

Does the answer change for the DS125BR800A? It looks like I need the higher gain.

Thank you

0 Drew Miller1 3 months ago in reply to Carl Audet

TI__Mastermind 38633 points

Hi Carl,

I would expect this to pass through the device. This seems pretty comparable to standard differential signaling.

Thanks,

Drew

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DS125BR820: Will boundary scan test signals pass through?