Design Flaw in iPhone 4, Testers Say
Jeff Liebermann wrote:
I've never seen a differential RF amp in a cell phone. If so, I would
expect either a balanced antenna feed, or possibly two antenna
connectors.
Things like vector mods (RF2422) have differential in/out, for instance.
Parts like the MAX2510 are similar.
It's true by the time you get to PA stage, that single ended seems to be
more common.
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