Abstract: Attenuation of received RF signals begins by determining signal strength of the received signal. The processing continues by determining whether the signal strength of the received signal exceeds a high power threshold. The high power threshold is set just below a power level at which the receiver would saturate (e.g., clip the received signals). Processing continues by enabling transmit mode of a transmit/receive switch while receiving the RF signal when the signal strength of the received signal exceeds the high power threshold. With the transmit/receive switch in the transmit mode while receiving an RF signal, the transmit/receive switch provides an attenuation of approximately 20 dBm.

Abstract: Calibration of received signal strength indication (RSSI) within a radio frequency integrated circuit (RFIC) begins by concurrently enables a transmitter portion and receiver portion. With both the transmitter and receiver enabled, the RFIC provides a zero input to the transmitter portion, where the zero input is an effective zero input based on the input circuitry of the transmitter portion. The RFIC then measures, via the receiver portion, the received signal strength of the RF signal generated by the transmitter portion regarding the zero input signal. The RFIC then compares the measured received signal strength with a desired zero input signal strength value. If the measured received signal strength compares unfavorably with the desired zero input signal strength value (e.g.