Types
•Flux-Coupled
•Voltage Balun (Transmission Line)
•Current Balun (Transmission Line)
•Autotransformer

Package Construction
•Ceramic: Premium high performance
•FR4: Economical for high volume applications
•Plastic: Inexpensive budget performance Can provide isolation from DC voltages (flux-coupled)
•For electrical safety
•To minimize un-wanted nois

• Baluns: Flux coupled, Transmission line.
• Auto Transformers
• Cores: Low cost, small, good Curie Temp
• Impedance ratio: 1:1 or 1:4 for Tx Line, any n1:n2 step for flux coupled.

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