A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the signal traces short and away from noise sources. Refer to the Realtek application note for more details.
Set the SPEED_SEL pin to '11' and the DUPLEX_SEL pin to '1' for 1Gbps full-duplex operation. Also, ensure the clock input is set to 125MHz.
The typical power consumption is around 350mW in 1Gbps mode and 200mW in 100Mbps mode. However, this can vary depending on the specific application and operating conditions.
Use a common-mode choke on the TX and RX differential pairs, and add a 10nF capacitor between the VCC and GND pins to reduce EMI emissions. Also, ensure proper shielding and grounding of the PCB.
The maximum cable length supported is up to 100 meters for Category 5e or higher cabling, assuming a proper termination and a good quality cable.
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