Patent ID: 6370133
Filing Date: 2002-04-09
Classification: H04B

Abstract:
A CDMA receiver, comprising:an analog to digital converter having an ADC input coupled to receive an incoming analog signal and an ADC output; a digital baseband conversion circuit having an input coupled to said ADC output, and a digital baseband output; digital filter circuitry having an input coupled to said digital baseband output and a digital filter output; a rake receiver circuit having an input coupled to said digital filter output and a data output; an automatic gain control amplifier having a signal input coupled to receive said incoming signal, an output coupled to said analog to digital converter, and an AGC control input; and a gain control circuit having an input coupled to said ADC output and an output coupled to said AGC control input, wherein said analog to digital converter includes an input saturation level and said control signal indicates the margin between the output power of said automatic gain control amplifier and said input saturation level of said analog to digital converter.