3.2.1 Requirements

Match the PCB line impedances to their corresponding driver impedances to reduce line reflections:

• Single-ended lines should have a 50 Ω +/-10% single-ended impedance.
• USB lines should have a 90 Ω +/-15% differential impedance.
• DDR CLOCK and STROBE lines should have a 100 Ω +/-10% differential impedance.
• Ethernet RX and TX differential lines should have a 100 Ω +/-10% differential impedance.
• MIPI CLOCK and DATA lines should have a 100 Ω +/-10% differential impedance.