Patent ID: 7877026

Claim:
A radio frequency integrated circuit (RFIC) comprises: a photodiode array circuit coupled to convert received light into electrical image signals; a digital conversion module coupled to convert the electrical image signals into digital image signals when the RFIC is in a transmit mode and to convert down-converted signals into digital receive baseband or low intermediate frequency (IF) signals when the RFIC is in a receive mode; a transmit baseband processing module coupled to convert the digital image signals into digital transmit baseband or low IF signals; an analog conversion module coupled to convert the digital transmit baseband or low IF signals into analog transmit baseband or low IF signals; an up-conversion module coupled to convert the analog transmit baseband or low IF signals into up-converted signals based on a transmit local oscillation; a power amplifier circuit coupled to amplify the up-converted signals to produce transmit radio frequency (RF) signals; a low noise amplifier circuit coupled to amplify receive RF signals to produce amplified receive RF signals; a down-conversion module coupled to convert the amplified receive RF signals into down-converted signals based on a receive local oscillation; and a receive baseband processing module coupled to convert the digital receive baseband or low IF signals into the digital signals.