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TUSB7320's differential impedance

Other Parts Discussed in Thread: TUSB7320

Hello,

According to the TUSB7320 user’s guide, PCIE differential impedance is 100-ohms.

My customer will design original board. He wants to use another impedance value.

Is it possible to use the impedance 85-ohms or 90-ohms?

Regards,

Naoki Aoyama