Transceiver and integrated circuit
AssigneeMediatek Inc.
InventorChih-Fan Liao
Life of this patent
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Abstract
An integrated circuit is disclosed, including a balun, a transistor pair, and a degeneration inductor winding. The balun has an outer boundary, and comprises a primary winding and a secondary winding. The primary winding is adapted to receive an input signal. The secondary winding is magnetically coupled to the primary winding, and adapted to convert the input signal into a differential form. The transistor pair is connected to the secondary winding and adapted to amplify the input signal. The degeneration inductor winding is connected to the transistor pair and located within the outer boundary of the balun.
Claims20
An integrated circuit, comprising:
- a balun, having an outer boundary, comprising:
- a primary winding, adapted to receive an input signal;
- and
- a secondary winding, magnetically coupled to the primary winding, adapted to convert the input signal into a differential form;
- a transistor pair, connected to the secondary winding, adapted to amplify the input signal;
- and
- a source degeneration inductor comprising a degeneration inductor winding, connected to the transistor pair, located within the outer boundary of the balun, wherein the degeneration inductor winding is formed such that a mutual inductance between the degeneration inductor winding and the secondary winding, whereby current flowing in the secondary winding has a direction the same as current flowing in the degeneration inductor winding.
A transceiver, comprising:
- a balun, having an outer boundary, comprising:
- a primary winding, adapted to receive an input signal;
- and
- a secondary winding, magnetically coupled to the primary winding, adapted to convert the input signal into a differential form;
- and
- a receiver, comprising:
- a differential amplifier, adapted to connect to the secondary winding and amplify the input signal;
- and
- a source degeneration inductor, connected to the differential amplifier, located within the outer boundary of the balun, wherein the source degeneration inductor is formed such that a mutual inductance between the source degeneration inductor and the secondary winding, whereby current flowing in the secondary winding has a direction the same as current flowing in the source degeneration inductor.
Dependencies are inferred from the claim text.