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DP83822I: via capacitor isolation

Part Number: DP83822I

Customer would like to use DP83822 PHY to replace existing ET1100 topology.

1. As diagram below, is it capacitor connection between PHYs acceptable in application?

2. If capacitor connection is acceptable between PHYs, is this ok in both voltage mode (DP83826) and current mode (DP83822I) of PHY?