Patent ID: 8903340

Claim:
An apparatus comprising: an over-voltage detector configured to determine if a peak of a radio frequency (RF) signal exceeds a first threshold; and a gain controller configured to reduce a gain of a low noise amplifier (LNA), configured to amplify the RF signal, if the peak of the RF signal exceeds the first threshold as determined by the over-voltage detector, wherein, after the gain controller has reduced the gain of the LNA in response to the peak of the RF signal exceeding the first threshold, the gain controller is configured to increase the gain of the LNA if the peak of the RF signal falls below a second threshold, and wherein the over-voltage detector comprises: a first peak-detector configured to process a reference value to provide the first threshold; a second peak-detector configured to process the RF signal to provide the peak of the RF signal; and a comparator configured to compare the first threshold to the peak of the RF signal to determine if the peak of the RF signal exceeds the first threshold.