neoflash
Community Fellow
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Mixed-Signal Designer
Posts: 397
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Generally it is not an issue, since the signal in your CML stage is digital signal instead of RF signal.
If you are treating with small signal such as LNA, you can add inductor ground shield, and place inductors far enough.
How far is enough? That is a question. I will use suggest 200um as the bottom line, if your inductor is 100um square.
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