Method of controlling a variable gain amplifier and electronic circuit
AssigneeNXP B.V.
InventorsJohannes Hubertus Antonius Brekelmans, Marc Godfriedus Marie Notten
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Abstract
The present invention relates to a method of controlling a variable gain amplifier having at least one semiconductor switch, the amplifier having a first gain when the semiconductor switch is in a first steady state and a first gate voltage is applied to the semiconductor switch, and the amplifier having a second gain when the semiconductor switch is in a second steady state and a second gate voltage is applied to the semiconductor switch, whereby a sequence of third gate voltages is applied to the semiconductor switch to transition between the first and second gains.
Claims15
A method of controlling a variable gain amplifier having at least one semiconductor switch, the amplifier having a first gain when the semiconductor switch is in a first steady state and a first gate voltage is applied to the semiconductor switch, and the amplifier having a second gain when the semiconductor switch is in a second steady state and a second gate voltage is applied to the semiconductor switch, whereby a sequence of third gate voltages is applied to the semiconductor switch to transition between the first and second gains.
An electronic circuit comprising a variable gain amplifier (100;400;
- 500;
- 600) having at least one semiconductor switch (104), the amplifier having a first gain when the semiconductor switch is in a first steady state and a first gain voltage is applied to the semiconductor switch, and the amplifier having a second gain when the semiconductor switch is in a second steady state and a second gate voltage is applied to the semiconductor switch, and control means (106, 130) for applying a sequence of third gate voltages to transition between the first an second gains.
Dependencies are inferred from the claim text.