I'm using a USB hub (TUSB2036VFR) that communicates with an ATMEGA8U2 and an FTDI chip. The incoming USB signal comes through an isolated USB communications chip ADUM3160BRWZ. The TUSB2036VFR requires a 90 ohm differential impedance, while the other devices require 22-24ohm.
Should I go with the lower impedance values or use 90 ohm for all of them? Selecting a different USB hub controller isn't really an option because of shortages.
The information for the TUSB2036VFR is on page 19, the ATMEGA8U2 is on page 265 and the ADUM3160BRWZ is on page 10.