nostr:nprofile1qyt8wumn8ghj7un9d3shjtnyd968gmewwp6kytcqyqpjn4vqgkchzj5qlpg7c0h2p8404a6memc63zcwdhyanvmx3pdauyvsyqt you know a whole lot more about FPGAS than I do, but I kinda wonder if a gigabit transceiver could do what you need. with appropriate filtering and whatever amplification you need