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A monolithic IC has been designed which integrates all the active RF functions of a quad band GSM handset except for the power amplifier. A direct-conversion receiver (900 MHz, NF 3.0 dB, IIP2 +65 dBm) and an up-conversion loop transmitter (900 MHz spectrum at 400 kHz -65 dBc, phase noise at 20 MHz -64 dBc/Hz) using a fractional-N PLL and fully-integrated transmit and UHF VCOs.
Solid-State Circuits Conference, 2002. Digest of Technical Papers. ISSCC. 2002 IEEE International (Volume:1 )
Date of Conference: 7-7 Feb. 2002