CPC G05F 1/577 (2013.01) [G05F 3/242 (2013.01); H03F 1/0211 (2013.01); H01Q 3/36 (2013.01)] | 16 Claims |
1. An electronic system comprising:
a supply conductor configured to route a supply voltage having a nominal voltage level; and
a plurality of semiconductor dies each configured to receive the supply voltage from the supply conductor, wherein each of the plurality of semiconductor dies comprises:
a supply sensing circuit configured to sense a local voltage level of the supply voltage and generate a sense signal based on the local voltage level of the supply voltage;
a bias control circuit configured to adjust a bias signal based on the sense signal to account for a difference between the nominal voltage level and the local voltage level of the supply voltage and compensate for supply voltage variation in the electronic system; and
a signal processing circuit biased by the bias signal, wherein the signal processing circuit includes a radio frequency (RF) amplifier having a DC operating point set by the bias signal, the RF amplifier configured to amplify an RF signal based at least in part on the bias signal.
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