Automatic gain control for a wireless receiver

摘要: Techniques for performing automatic gain control (AGC) at a wireless receiver are described. The total the is achieved with discrete steps analog circuitry and continuous digital variable amplifier (DVGA). An AGC loop updated based on power measurements an output signal from DVGA. A first selected among multiple values to maintain average of baseband within predetermined range analog-to-digital converter (ADC) input. second DVGA reference level. switched in manner avoid saturation ADC caused by provide switching hysteresis. may be performed log domain modes.