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For a high-speed design what are the impedance parameters to be met at the USB interface?

April 26, 2017design High-Speed impedance interface Met parameters USB

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For a high-speed design what are the impedance parameters to be met at the USB interface?

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The impedance parameters to be met at the USB interface are 45Ω±10% from D+/D- to ground and a differential impedance of 90Ω±10% between D+ and D-. Non-compliance of these parameters can affect the working of the design with longer cables.