Wireless receiver system and method with automatic gain control

摘要

A wireless receiver system with automatic gain control, which includes a receiving path, an analog to digital converter, an automatic gain control (AGC) device and a controller. The controller has an adjacent channel interference off mode, an adjacent channel interference acquisition mode and an adjacent channel interference tracking mode to accordingly set the AGC device for adjusting the gains of a plurality of modules of the receiving path. Namely, the strengths of different adjacent channel interferences are appropriately adjusted to thereby obtain the best received signal quality.