Adjustment of bias current in a first integrated circuit based on a gain signal of a second integrated circuit.

摘要

"Adjustment of bias current in a first integrated circuit based on a gain signal of a second integrated circuit".A technique of adjustment of bias current of a circuit operative in a path of signal transmission based on (s) gain (s) of signal (s) of element (s) of gain variable (s) located before the CIRcuito active.The technique is particularly advantageous when the element (s) of gain is (are) located (s) on an IC (for example,It implements a part of the FIS) and the active circuit is implemented in another IC (for example, which implements a part of RF).The DC bias of the circuit is active is determined based in part on the input power level.It can be inferred from the (s) signal (s) of gain control (s) used to control the elements of gain variable above. Initially, at least one control signal gain.A current bias to the active circuit is then determined based, in part, at the level of the input signal is estimated. The active circuit is driven with the DC bias is determined.The chain driven may be limited to a range defined by an upper and a current bias current lower bias.