Method and system for WCDMA power amplifier closed loop power control

A method for processing signals, the method comprising:

• in a wireless transmitter:
• determining a magnitude of an output RF signal generated from a power amplifier;
• configuring a gain of a PGA coupled to an input of said power amplifier via closed-loop feedback to maintain a desired magnitude of said output RF signal;
• and
• generating a signal proportional to said magnitude of said output RF signal via an envelope detector.

A system for processing signals, the system comprising:

• one or more circuits for use in a wireless transmitter, wherein said one or more circuits comprise a power amplifier and a programmable gain amplifier, and said one or more circuits are operable to determine a magnitude of an output RF signal generated from said power amplifier;
• said one or more circuits are operable to configure a gain of said PGA coupled to an input of said power amplifier via closed-loop feedback to maintain a desired magnitude of said output RF signal;
• and
• said one or more circuits comprise an envelope detector, and wherein said one or more circuits are operable to generate a signal proportional to said magnitude of said output RF signal via an envelope detector.