CPC H03F 1/0222 (2013.01) [H03F 1/025 (2013.01); H03F 1/34 (2013.01); H03F 3/195 (2013.01); H03F 3/24 (2013.01); H03F 3/245 (2013.01); H04W 76/27 (2018.02); H03F 3/189 (2013.01); H03F 2200/102 (2013.01); H03F 2200/504 (2013.01); H03F 2200/507 (2013.01); H03F 2200/511 (2013.01); H03F 2200/546 (2013.01); H03K 23/005 (2013.01)] | 20 Claims |
1. A tracker circuit configured to provide a variable supply voltage to a power amplifier (PA) circuit comprising:
a state machine circuit comprising a plurality of states, wherein the plurality of states of the state machine circuit identify operational modes associated with the tracker circuit, wherein each operational mode comprises one or more voltage levels respectively associated therewith; and
wherein a transition between the operational modes of the tracker circuit is controlled by a digital selection signal received from a digital communication interface,
wherein the plurality of states of the state machine circuit are mapped in accordance with a transition between the operational modes of the tracker circuit.
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