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TUSB217A-Q1: J/K Tests Fail

Part Number: TUSB217A-Q1

Dear TI Application Team,

This is a follow-up of https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1042031/tusb217a-q1-unable-to-perform-cdp-handshake

I was unable to activate the CDP controller of TUSB217A-Q1 in RGY package, and this was fixed by connecting its RESERVED pin to GND.

However, the design now fails J and K testing because of a D- level above 10 mV (approx 20 mV). The D- level goes back to normal by removing the shunt to GND (RESERVED pin, disabling BC 1.2).

What could be causing the issue, and how would you suggest running J & K tests?

Thanks,

Giuseppe