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US 7,804,356 B2Granted
Amplifier with automatic gain profile control and calibration
AssigneeBroadcom Corporation
InventorsRamon Gomez, Jianhong Xiao, Takayuki Hayashi
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Abstract
Embodiments of the present invention provide systems and methods for automatic amplifier gain profile control, including a method for automatically configuring a variable gain profile amplifier according to received input and a variable gain profile amplification system. Further, embodiments of the present invention provide systems and methods for increased gain profile accuracy, including methods and systems to reduce the effects of temperature and/or process variations on the gain profile of an amplifier.
Claims24
An amplification system, comprising:
- an amplifier integrated circuit (IC) that receives an input signal and outputs an amplified output signal;
- a gain profile controller that controls said amplifier IC to select between a first gain profile and a second gain profile of said amplifier IC based on said input signal wherein said gain profile controller controls said amplifier IC based on a comparison of a first output power level and a second output power level, wherein said first output power level corresponds to said amplifier IC configured according to said first gain profile and said second output power level corresponds to said amplifier IC configured according to said second gain profile;
- and
- a component calibration system that calibrates circuit components of said amplifier IC to compensate for gain profile variations within said amplifier IC.
1 more element
Dependencies are inferred from the claim text.