Patent ID: 7321273

Claim:
An off chip LC (inductance-capacitance) circuit providing a lowest ground and VDD impedance for an on-chip power amplifier (PA), the circuit comprises: a first radio frequency (RF) choke that couples an off chip supply potential node to a first pin of an integrated circuit; wherein the first pin connects to an on-chip supply potential node of a die that is implemented within the integrated circuit, the on-chip supply potential node powers the on-chip PA (Power Amplifier); a second RF choke that couples an off chip ground potential node to a second pin of the integrated circuit; wherein the second pin connects to an on-chip ground potential node of the die, the on-chip ground potential node serves as an on-chip ground reference of the on-chip PA; an off chip joining capacitor that couples the first pin and the second pin of the integrated circuit; and an off chip tuning capacitor that couples the first pin of the integrated circuit and to an off chip true ground potential node.