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Part Number: TS3DDR3812
My customer needs to isolate RGMII signals when some circuit (CPU) is not powered up. They are using TS3DDR3812RUAR as an isolation barrier.
For RGMII, the signal data rate for 1000Mbps is in the range of 125MHz, so the TS3DDR3812 will be able to handle the data rate with no issue given its high bandwidth of 1.675 GHz. Keep in my in order to have signal isolation, the switch needs to be powered-up as well.
If you are looking for signal isolation even when the switch is un-powered, look for a device with powered-off protection feature, such as the newly release TMUX1511.
Refer to the below E2E thread for more details of the powered-off protection feature.
TI has some Ethernet buffers and redriver products. You may refer to the link for more information. I am no experts on Ethernet trace PCB routing. You may post question on the Ethernet forum and see if someone from the Ethernet team can help you out.
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